MO0503-EA Getting Acquainted Congratuations upon your seection of this CASIO watch. To get the most out of your purchase, be sure to read this manua carefuy and keep it on hand for ater reference when necessary. Keep the watch exposed to bright ight The eectricity generated by the soar ce of the watch is Bright ight stored by a buit-in battery. Leaving or using the watch where it is not exposed to ight causes the battery to run down. Make sure the watch is exposed to ight as much as possibe. When you are not wearing the watch on your wrist, Soar ce position the face so it is pointed at a source of bright ight. You shoud try to keep the watch outside of your seeve as much as possibe. Even if the face of the watch is ony partiay bocked from ight, charging wi be reduced significanty. The watch continues to operate, even when it is not exposed to ight. Leaving the watch in the dark can cause the battery to run down, which wi cause some watch functions to be disabed. If the battery goes dead, you wi have to re-configure watch settings after recharging. To ensure norma watch operation, be sure to keep it exposed to ight as much as possibe. Battery charges in the ight. Battery discharges in the dark. Soar ce (Converts ight to eectrica power.) Bright ight LEVEL 1 LEVEL 2 Charge LEVEL 3 Rechargeabe battery Eectrica energy A functions enabed Genera Guide Press C to change from mode to mode. In any mode, press D to iuminate the face of the watch. Discharge LEVEL 1 LEVEL 2 LEVEL 3 Some functions disabed The actua eve at which some functions are disabed depends on the watch mode. Frequent dispay iumination can run down the battery quicky and require charging. The foowing guideines give an idea of the charging time required to recover from a singe iumination operation. Approximatey 5 minutes exposure to bright sunight coming in through a window Approximatey 50 minutes exposure to indoor fuorescent ighting Be sure to read Power Suppy for important information you need to know when exposing the watch to bright ight. If the dispay of the watch is bank... If the dispay of the watch is bank, it means that the watch s Power Saving function has turned off the dispay to conserve power. See Power Saving for more information. About This Manua Button operations are indicated using the etters shown Stopwatch 1/20 in the iustration. second dia Most of the dispay exampes in this manua show ony Hour hand Minute hand the digita dispay, without the anaog hands. Each section of this manua provides you with the information you need to perform operations in each mode. Further detais and technica information can be found in the Reference section. Second Digita dispay hand 24-hour dia Battery eve dia Entering the Stopwatch Mode causes the second hand and battery eve dia hand to move to the 12 o cock position. Reca Mode Dua Time Mode Timekeeping Mode Stopwatch Mode Press C. Hand Setting Mode Aarm Mode Radio-controed Timekeeping This watch receives a time caibration signa and updates its time setting accordingy. The time caibration signa incudes both Standard Time and Dayight Saving Time (summer time) data. This watch is designed to pick up the time caibration signa transmitted in Germany (Mainfingen) and Engand (Rugby). Current Time Setting This watch automaticay adjusts its digita time setting in accordance with a time caibration signa. You can aso perform a manua procedure to set the time and date, when necessary. The first thing you shoud do after purchasing this watch is to specify your Home Time Zone, which is the time zone where you wi normay use the watch. For more information, see To specify your Home Time Zone beow. When using the watch outside the range of the Germany and Engand time signa transmitters, you have to adjust the current time setting manuay as required. See Timekeeping for more information about manua time settings. The anaog time of this watch is synchronized with the digita time. Because of this, the anaog time setting is adjusted automaticay whenever you change the digita setting. See Anaog Timekeeping for more information. To specify your Home Time Zone 1. In the Timekeeping Mode, hod down A unti the GMT DST indicator differentia vaue starts to fash, which indicates the setting screen. The second hand wi move at high speed to the 12 o cock position, where it wi stop. The GMT differentia vaue indicates the time difference in hours between Greenwich Mean Time and the currenty seected time zone. The DST indicator indicates that Dayight Saving Time GMT differentia vaue (summer time) is turned on for the currenty seected time zone. 2. Use D (+) and B ( ) to seect the time zone you want to use as your Home Time Zone. The GMT differentia vaues for major cities in the Western Europe time zones are shown beow. that if the time zone you seected is in Dayight Saving Time and the signa receiving indicator ( ) is on the dispay (indicating that the watch has received a signa and has adjusted its GMT differentias for Dayight Saving Time), you must seect the GMT differentia vaues shown in the parentheses. + 1.0 (DST + 2.0): Paris, Berin, Mian, Rome, Amsterdam, Hamburg, Frankfurt, Vienna, Barceona, Madrid + 0.0 (DST + 1.0): London 3. Press A to exit the setting screen. The second hand wi advance at high speed to the correct position in accordance with the seconds count of the digita time, and resume norma movement from there. Normay, your watch shoud show the correct time as soon as you specify your Home Time Zone. If it does not, it shoud adjust automaticay after the next auto receive operation (in the midde of the night). You can aso perform manua receive or you can set the time manuay. Seecting +1.0 or +0.0 as your Home Time Zone automaticay turns on auto receive. When auto receive is turned on and you are within the reception range, the watch wi receive the time caibration signa automaticay from the appicabe transmitter (in the midde of the night) and update its settings accordingy. For information about the reationship between time zones (GMT differentia vaues) and transmitters, see Transmitters. See the maps under Reception Ranges for information about the reception ranges of the watch. If you are in an area that does not use Dayight Saving Time (summer time), turn off the DST setting. If A, D77.5, M60, or OFF starts to fash in pace of the GMT differentia vaue when you hod down A in step 1 of the above procedure, press A again to exit the setting screen. After that, press B and then perform step 1 again. To dispay the digita time and ast signa screen In the Timekeeping Mode, press A to cyce through the digita time screens as shown beow. In the Timekeeping Mode, press B to dispay the ast signa screen. The ast signa screen shows the date and time of the ast successfu time caibration signa reception. Year Month Day Hour : Minutes Day of week Month Day Press A. Press B. PM indicator Receive time Receive date Last Signa Screen The ast signa screen remains on the dispay for about one or two minutes. After that, the Timekeeping Mode screen reappears. Time Caibration Signa Reception There are two different methods you can use to receive the time caibration signa: auto receive and manua receive. The second hand stops at the 12 o cock position whie time caibration signa reception is in progress. After reception is compete, the second hand moves automaticay unti it matches the digita time. Auto Receive With auto receive, the watch automaticay picks up the time caibration signa five times a day at 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. For more information, see About Auto Receive. Manua Receive Manua receive ets you start a time caibration receive operation with the press of a button. For more information, see To perform manua receive. 1
Important! When getting ready to receive the time caibration signa, position the watch as shown in the nearby iustration, with its 12 o cock side facing towards a window. Make sure there are no meta objects nearby. Resin Band Meta Band The watch shoud not be on its side or facing the wrong way. Proper signa reception can be difficut or even impossibe under the conditions isted beow. Inside or among buidings Inside a vehice Near househod appiances, office equipment, or a mobie phone Near a construction site, airport, or other sources of eectrica noise Near hightension power ines Among or behind mountains Signa reception is normay better at night than during the day. Time caibration signa reception takes from two to seven minutes, but in some cases it can take as ong as 14 minutes. Take care that you do not perform any button operations or move the watch during this time. When within range of the appicabe transmitter, this watch can receive either the Germany (Mainfingen) or Engand (Rugby) time caibration signa. See Transmitters for more information. Reception Ranges 1,500 kiometers Rugby 500 kiometers Mainfingen Under good reception conditions, signa reception is possibe within a radius of about 1,500 kiometers from a transmitter. At distances further than about 500 kiometers from a transmitter, signa reception may not be possibe during certain times of year or times of day. Radio interferance may aso cause probems with reception. See the information under Signa Reception Troubeshooting if you experience probems with time caibration signa reception. About Auto Receive When auto receive is turned on, the watch automaticay starts to receive the time caibration signa when the digita time in the Timekeeping Mode reaches 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. each day (caibration times). The watch wi aso perform an additiona auto receive operation at 5:00 a.m. if none of the reguary schedued auto receive operations are successfu. Auto receive turns on automaticay whenever you seect +1.0 or +0.0 as your Home Time Zone. For information about turning off auto receive, see To seect the transmitter mode. The auto receive operation is performed ony if the watch is in the Timekeeping Mode or Dua Time Mode when one of the caibration times is reached. It is not performed if a caibration time is reached whie an aarm is sounding, or whie you are configuring settings (whie settings are fashing on the dispay). Auto receipt of the caibration signa is designed to be performed eary in the morning, whie you seep (provided that the Timekeeping Mode time is set correcty). Before going to bed for the night, remove the watch from your wrist, and put it in a ocation where it can receive the signa easiy. When auto receive is turned on, the watch receives the caibration signa for two to seven minutes everyday when the time in the Timekeeping Mode reaches each of the caibration times. Do not perform any button operation within seven minutes before or after any one of the caibration times. Doing so can interfere with correct caibration. Remember that reception of the caibration signa depends on the current time on the digita dispay. The receive operation wi be performed whenever the dispay shows any one of the caibration times, regardess of whether or not the dispayed time is actuay the correct time. When two, three, four, or five receptions are successfu, the watch uses the data of the ast reception for caibration. When ony one reception is successfu, the watch uses the data of the successfu reception. About the Receiving Indicator The receiving indicator shows the strength of the caibration signa being received. For best reception, be sure to keep the watch in a ocation where signa strength is strongest. Weak (Leve 1) Receiving indicator Strong (Leve 4) Even in an area where signa strength is strong, it takes about 10 seconds for signa reception to stabiize enough for the receiving indicator to indicate signa strength. Use the receiving indicator as a guide for checking signa strength and for finding the best ocation for the watch during signa receive operations. The Leve 4 receiving indicator remains on the dispay in a modes foowing reception of the time caibration signa and caibration of the watch s time setting. The Leve 4 receiving indicator is not dispayed if signa reception was unsuccessfu or after manua adjustment of the current time setting. The Leve 4 receiving indicator indicates that at east one of the caibration signa receive operations was successfu., however, that the Leve 4 receiving indicator is ceared from the dispay at 3:00 a.m. each day. To perform manua receive 1. Pace the watch on a stabe surface so its top (12 o cock side) is facing towards a window. 2. Whie any screen other than the ast signa screen is on the dispay in the Timekeeping Mode, hod down B for about two seconds unti the watch beeps. 3. Reease B and the current date or time wi fash to indicate that signa reception has started. When a receive operation starts, the second hand wi Receiving indicator move at high speed to the 12 o cock position where it wi stop unti the receive operation is compete. Time caibration signa reception takes from two to seven minutes, but in some cases it can take up to 14 minutes. Take care that you do not perform any button operations or move the watch during this time. After signa reception is compete, the watch beeps and the dispay of the watch changes to the ast signa screen. To interrupt a receive operation and return to the Timekeeping Mode, press B. If the receive operation is unsuccessfu, appears on the dispay for about one or two minutes. After that, the watch returns to the Timekeeping Mode. You can aso change from the ast signa or screen to the norma timekeeping screen by pressing B. Signa Reception Troubeshooting Check the foowing points whenever you experience probems with signa reception. Probem Cannot perform manua receive. Auto receive is turned on, but the Leve 4 receiving indicator does not appear on the dispay. Time setting is incorrect foowing signa reception. Probabe Cause What you shoud do The watch is not in the Timekeeping Enter the Timekeeping Mode Mode. and try again. Your current Home Time Zone Seect +1.0 or +0.0 as your setting is not one of the foowing: Home Time Zone. +1.0 or + 0.0. Seect the transmitter setting The transmitter setting is incorrect. appropriate for your current ocation. The transmitter setting is incorrect. You changed the time setting manuay. The watch was not in the Timekeeping or Dua Time Mode, or you performed some button operation during the auto receive operation. Even if receive is successfu, the Leve 4 receiving indicator disappears every day at 3 a.m. If the time is one hour off, the DST setting may be incorrect. The Home Time Zone setting is not correct for the area where you are using the watch. Seect the transmitter setting appropriate for your current ocation. Perform manua signa receive or wait unti the next auto signa receive operation is performed. Check to make sure the watch is in a ocation where it can receive the signa. Change the DST setting to Auto DST. Seect the correct Home Time Zone. For further information, see Important! under Time Caibration Signa Reception and Radio-controed Timekeeping Precautions. Stopwatch Second hand Battery Stopwatch 1/20 eve dia second dia Minutes 1/100 second The stopwatch ets you measure eapsed time, ap times, spit times, and two finishes. Stopwatch times are aso stored in memory. The dispay range of the stopwatch is 59 minutes, 59.99 seconds. A of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing C. Entering the Stopwatch Mode causes the second hand and battery eve dia hand to move to the 12 o cock position. In the Stopwatch Mode, the second hand shows the seconds of the eapsed time measurement, the battery eve dia shows eapsed minutes, and the stopwatch 1/20 second dia shows eapsed 1/20 second. Lap time is the time spent to cover a specific segment of a race, such as one ap around a track. Spit time is the time spent from the beginning of a race up to a certain point. The stopwatch continues to run, restarting from zero after it reaches its imit, unti you stop it. The stopwatch measurement operation continues even if you exit the Stopwatch Mode. The hand of the stopwatch 1/20 second dia revoves for the first minute of each eapsed time operation. After that, it stops automaticay at the 12 o cock position. If you exit the Stopwatch Mode whie an eapsed time operation is in progress, the 1/20 second hand wi revove for the first minute after you re-enter the Stopwatch Mode. When you stop an eapsed time measurement, the 1/20 second hand wi move automaticay from the 12 o cock position to the current 1/20 second count. For information about how stopwatch times are stored in memory, see Memory Management. You can adjust the positions of the stopwatch 1/20 second dia and battery eve dia hands if they do not aign exacty with the 12 o cock position. See Adjusting Dia Hand Positions for more information. To measure eapsed time 1. Press B to start the stopwatch. 2. Press B again to stop the stopwatch. You can resume the measurement operation by pressing B. 3. Press A to cear the stopwatch to a zeros. 2
To measure ap times 1. When the stopwatch dispay shows a zeros, press A to dispay the ap time screen (indicated by LAP). 2. Press B to start a time measurement. 3. Press A to record the time of the first ap. This freezes the current ap time on the digita dispay for about five seconds, whie measurement of the next ap time continues internay and eapsed time continues to be indicated by the anaog hands. After five seconds, the ap number of the dispayed time appears for one second, and then the eapsed time dispay for the next ap appears. 4. Repeat step 3 to record more ap times. 5. Press B to stop the stopwatch. 6. Press A to cear the stopwatch to a zeros. Lap numbers are incremented automaticay starting from 1 whenever you press A in step 3 of the above procedure. The maximum ap number is 99. Recording a ap after that causes the ap number count to restart from 00. To measure spit times 1. When the stopwatch dispay shows a zeros, press A to dispay the spit time screen (indicated by SPL). 2. Press B to start a time measurement. 3. Press A to record the time of the first spit. This freezes the current spit time on the digita dispay for about five seconds, whie measurement of the next spit time continues internay and eapsed time continues to be indicated by the anaog hands. After five seconds, the eapsed time dispay for the next spit wi appear. 4. Repeat step 3 to record more spit times. 5. Press B to stop the stopwatch. 6. Press A to cear the stopwatch to a zeros. To time first and second pace finishes 1. When the stopwatch dispay shows a zeros, press A to dispay the spit time screen (indicated by SPL). 2. Press B to start a time measurement. 3. Press A when the first finisher crosses the finish ine. This freezes the time of the first finisher on the digita dispay for about five seconds. After that, the dispay returns to eapsed time measurement. 4. Press B when the second finisher crosses the finish ine, and dispay the time. 5. Press A to cear the stopwatch to a zeros. Memory Management Any time you start a new eapsed time measurement (from a zeros) in the Stopwatch Mode, the watch automaticay deetes a of the stopwatch time records currenty in memory. The foowing tabe shows Stopwatch Mode operations, and how they affect memory storage. To do this: Cear a stopwatch times from memory and start eapsed time measurement Pause an eapsed time measurement without storing data in memory Restart a paused eapsed time measurement without storing data in memory Record a ap or spit time in memory during ongoing eapsed time measurement Record the currenty paused eapsed, ap, or spit time in memory Press this button: B (when a zeroes are dispayed) The watch has enough memory to hod up to 50 ap/spit time records. Recording a ap or spit time whie there are aready 50 records in memory deetes the odest record to make room for the new one. See Reca Mode for detais on how to reca time records from memory. Reca Mode Lap number Minutes 1/100 second B B A A (cears dispay to a zeros) Use the Reca Mode to reca and deete time records stored in the Stopwatch Mode. You can use the Reca Mode to view both ap and spit time records. A of the operations in this section are performed in the Reca Mode, which you enter by pressing C. Entering the Reca Mode dispays the number of the ast ap recorded in the Stopwatch Mode. After that, the appicabe ap time appears. If there are no stopwatch time records in memory, LAP appears on the dispay. To reca stopwatch time records 1. In the Reca Mode, press A to seect the either ap time or spit time format. Lap Time Format Press A. Spit Time Format 2. Press B to scro through the stopwatch time records from the newest to the odest. Each press of B dispays the next ap or spit number for about one second, and then dispays the appicabe ap or spit time. Regardess of whether you are viewing time records in ap time format or spit time format, the ap/spit number is indicated on the dispay as LAP 1, LAP 2, etc. To deete a stopwatch time records In the Reca Mode, hod down A and B for about two seconds. During that time :. wi fash on the digita dispay. Keep A and B depressed unti :. stops fashing. If you reease A and B before :. stops fashing, the watch wi return to the stopwatch time record screen without deeting time records. The ap number wi show LAP after a of the stopwatch time records are deeted. that ap and spit times cannot be deeted individuay. Stopwatch time records can be deeted ony when the Stopwatch Mode eapsed time dispay is ceared to a zeros. Dua Time The Dua Time Mode ets you view the current time in 29 GMT differentia vaue time zones around the word. Time zones are indicated on the digita dispay by their GMT differentia vaues. For fu information on time zones, see the Time Zone Tabe. The watch wi perform a signa receive operation even if it is in the Dua Time Mode when a caibration time is reached. If this happens, the Dua Time Mode time settings wi be adjusted in accordance with the current time in the Timekeeping Mode s Home Time Zone. A of the operations in this section are performed in the Dua Time Mode, which you enter by pressing C. Current time in the seected time zone To view the time in another time zone Whie in the Dua Time Mode, press B to scro westward through time zones. When you reease B, the dispayed GMT differentia vaue is repaced by the current time in that time zone after about one second. Pressing A causes the appicabe GMT differentia vaue of the currenty seected time zone to appear on the digita dispay for about one second. If the current time shown for a time zone is wrong, check the Timekeeping Mode time setting and your Home Time Zone setting, and make the necessary changes. To togge a time zone between Standard Time and Dayight Saving Time 1. In the Dua Time Mode, use B to dispay the time zone DST indicator whose Standard Time/Dayight Saving Time setting you want to change. 2. Hod down A to togge between Dayight Saving Time (DST indicator dispayed) and Standard Time (DST indicator not dispayed). The DST indicator appears on the dispay whenever you dispay a time zone for which Dayight Saving Time is turned on. The DST/Standard Time setting you configure affects ony the currenty dispayed time zone. Other time zones are not affected. that you cannot use the Dua Time Mode to change the DST setting of the Home Time Zone you currenty have seected in the Timekeeping Mode. See To change the Dayight Saving Time (summer time) setting for information about turning the Home Time Zone DST setting on and off. The G0.0 time (Greenwich Mean Time) zone cannot be switched between Standard Time and Dayight Saving Time. Aarms Aarm number Aarm time On/Off status (Hour : Minutes) Houry Time Signa Screen To set an aarm time The Aarm Mode gives you a choice of four one-time aarms and one snooze aarm. One of the one-time aarms functions as a target aarm, which counts the time remaining from the current time in your Home Time Zone unti the target aarm time. Aso use the Aarm Mode to turn the Houry Time Signa on and off. There are five aarms numbered AL1, AL2, AL3, AL4 (target aarm), and AL5 (snooze aarm). You can configure AL5 as a snooze aarm ony. Aarms AL1, AL2, AL3, and AL4 can be used as one-time aarms ony. A of the operations in this section are performed in the Aarm Mode, which you enter by pressing C. 1. In the Aarm Mode, use B to scro through the aarm screens unti the one whose time you want to set is dispayed. 2. After you seect an aarm, hod down A unti the hour setting of the aarm time starts to fash, which indicates the setting screen. This operation automaticay turns on the aarm. 3. Press C to move the fashing between the hour and minute settings. 4. Whie a setting is fashing, use D (+) and B ( ) to change it. When setting the aarm time using the 12-hour format, take care to set the time correcty as a.m. (no indicator) or p.m. (P indicator). 5. Press A to exit the setting screen. With the target aarm (AL4), the time starts to countdown as soon as you set the aarm time. Target Aarm Time AL 1 AL 2 AL 3 :00 AL 5 AL 4 Countdown (Hours, Minutes, ) 3
Aarm Operation The aarm tone sounds at the preset time for 10 seconds, regardess of the mode the watch is in. In the case of the snooze aarm, the aarm operation is performed a tota of seven times, every five minutes, or unti you turn the aarm off. The target aarm counts the time remaining from the current time in your Home Time Zone unti the target aarm time. that the target aarm repeats automaticay each day, as ong as it is turned on. You need to turn off the target aarm to disabe it. Aarm and Houry Time Signa operations are performed in accordance with the Timekeeping Mode digita time. Pressing any button stops the aarm tone operation. Performing any one of the foowing operations during a 5-minute interva between snooze aarms cances the current snooze aarm operation. Dispaying the Timekeeping Mode setting screen Dispaying the snooze aarm (AL5) setting screen To test the aarm In the Aarm Mode, hod down B to sound the aarm. To turn an aarm and the Houry Time Signa on and off Snooze aarm indicator 1. In the Aarm Mode, use B to seect an aarm or the Houry Time Signa. 2. Press A to togge it on (on dispayed) and off (of dispayed). You need to dispay the screen of a daiy aarm (AL1 to AL5) or the Houry Time Signa in order to check its current on/off status. Turning on the snooze aarm dispays the snooze aarm On/Off status indicator on its Aarm Mode screen and in a modes. The snooze aarm indicator fashes during the 5-minute intervas between aarms. Houry Time Signa Screen Timekeeping Use the Timekeeping Mode to set and view the current time and date. This section aso expains how to set the current date and time manuay. A of the operations in this section are performed in the Timekeeping Mode, which you enter by pressing C. Year Month Day Day of week Month Day Press A. PM indicator Hour : Minutes Press B. Last Signa Screen Setting the Digita Time and Date Manuay Make sure you seect your Home Time Zone before you change the current time and date settings. Dua Time Mode times are a dispayed in accordance with the Timekeeping Mode settings. Because of this, Dua Time Mode times wi not be correct if you do not seect the proper Home Time Zone before setting the time and date in the Timekeeping Mode. When setting the time and date, you can aso configure settings for your Home Time Zone (the time zone where you normay use the watch), summer time (Dayight Saving time or DST), 12/24-hour format, and power saving on/off. To set the digita time and date manuay DST indicator 1. Whie any screen other than the ast signa screen is on the dispay in the Timekeeping Mode, hod down A unti the GMT differentia vaue starts to fash, which indicates the setting screen. The second hand wi move at high speed to the 12 o cock position, where it wi stop. GMT differentia vaue The GMT differentia vaue indicates the time difference in hours between Greenwich Mean Time and the currenty seected time zone. The DST indicator indicates that Dayight Saving Time (summer time) is turned on for the currenty seected time zone. 2. Use D (+) and B ( ) to seect the time zone you want to use as your Home Time Zone. For fu detais about GMT differentia vaues, see the Time Zone Tabe. 3. Press C to move the fashing in the sequence shown beow to seect other settings. GMT differentia vaue Power Saving DST Day 12/24-Hour Format Month Year Hour Minutes 4. When the setting you want to change is fashing, use B and D to change it as described beow. Screen To do this: Change the time zone Togge between Dayight Saving Time (on), Standard Time (OFF), or Auto DST (A) Togge between 12-hour (12H) and 24-hour (24H) timekeeping Reset the seconds to 00 Change the hour or minutes Change the year, month, or day Togge power saving on (on) and off (OFF) Do this: Use D (+) and B ( ). Use D (+) and B ( ). Use D (+) and B ( ). 5. Press A to exit the setting screen. When you exit the setting screen, the anaog hands are adjusted automaticay to match the digita time. See Anaog Timekeeping for more information. Auto DST (A) can be seected ony whie +0.0, +1.0, or +2.0 is seected as the Home Time Zone. For more information, see Dayight Saving Time (DST) beow. Dayight Saving Time (DST) Dayight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not a countries or even oca areas use Dayight Saving Time. The time caibration signas incude both Standard Time and DST data. When the auto DST setting is turned on, the watch switches between Standard Time and DST (summer time) automaticay in accordance with the signa it receives. The auto DST setting can be turned on ony whie +0.0, +1.0, or +2.0 is seected as the Home Time Zone. If you experience probems receiving the time caibration signa in your area, it is probaby best to switch between Standard Time and Dayight Saving Time (summer time) manuay. To change the Dayight Saving Time (summer time) setting 1. Whie any screen other than the ast signa screen is on the dispay in the Timekeeping Mode, hod down A unti the GMT differentia vaue starts to fash, which indicates the setting screen. 2. Press C to dispay the DST setting screen. 3. Press D to cyce through the DST settings in the sequence shown beow. Auto DST (A) DST off (OFF) DST on (on) 4. Press A to exit the setting screen. The DST indicator appears on the dispay to indicate that Dayight Saving Time is turned on. Anaog Timekeeping The anaog time of this watch is synchronized with the digita time. The anaog time setting is adjusted automaticay whenever you change the digita time. The hands for the anaog timepiece move to adjust to a new setting whenever any of the foowing occurs. When you change the digita time setting manuay When the digita time setting is changed by time caibration signa reception When you change the Home Time Zone and/or DST setting Whenever you need to adjust both the digita and the anaog time settings manuay, make sure you adjust the digita setting first. Depending on how much the hands have to move in order to adjust to the digita time, it may take some time before they stop moving. To adjust the anaog time 1. In the Timekeeping Mode, press C five times to enter Second hand the Hand Setting Mode. Hour hand Minute hand 2. Hod down A unti 0 0 starts to fash, which indicates the anaog setting screen. The second hand wi move at high speed to the 12 o cock position, where it wi stop. 3. If the second hand is not pointing precisey at 12 o cock at this time, use D to adjust its position. Each press of D causes the second hand to advance by one second. 4. Press C. This wi cause the Timekeeping Mode time 24-hour dia on the digita dispay to fash, which indicates that adjustment of hour and minute hands is seected. 5. Use D (+) and B ( ) to move the hands in 20-second units. Hoding down either button moves the hands at high speed. Adjust the anaog time so it matches the digita time. that the 24-hour dia hand moves in coordination with the hour and minute hands. When adjusting the anaog time, keep an eye on the 24-hour dia hand to make sure that it is in the correct am/pm position. To move the hands forward a ong way, hod down D, press B, and then reease both buttons. To move the hands back a ong way, hod down B, press D, and then reease both buttons. The above operations cause the hands to move at high speed unti you press any button or unti the hands compete one 24-hour cyce (two revoutions). Hand movement aso stops if an aarm starts to sound. 6. Press A twice to exit the setting screen. The first press of A causes 00:00.00 to appear on the dispay (indicating the stopwatch 1/20 second dia hand adjustment screen). Pressing A the second time exits the setting screen. To return to the Timekeeping Mode, press C. Iumination Auto ight switch on indicator Two LEDs (ight-emitting diodes) iuminate the face of the watch for easy reading in the dark. The watch s auto ight switch automaticay iuminates the face when you ange the watch towards your face. The auto ight switch must be turned on (indicated by the auto ight switch on indicator) for it to operate. You can specify 1.5 seconds or 2 seconds as the iumination duration. See Iumination Precautions for other important information. To iuminate the face of the watch In any mode (except when a setting screen is on the dispay), press D to iuminate the face of the watch. The above operation turns on iumination regardess of the current auto ight switch setting. To specify the iumination duration 1. Whie any screen other than the ast signa screen is on the dispay in the Timekeeping Mode, hod down A unti the GMT differentia vaue starts to fash, which indicates the setting screen. 2. Press C three times to move the fashing to the second setting. 3. Press B to togge the iumination duration setting between 2 seconds (. dispayed in front of seconds count) and 1.5 seconds (. not dispayed). 4. Press A to exit the setting screen. 4
About the Auto Light Switch Turning on the auto ight switch causes the face to iuminate, whenever you position your wrist as described beow in any mode. that this watch features a Fu Auto LED Light, so the auto ight switch operates ony when avaiabe ight is beow a certain eve. It does not iuminate the face under bright ight. Moving the watch to a position that is parae to the ground and then titing it towards you at more than 40 degrees causes iumination to turn on. Wear the watch on the outside of your wrist. Parae to ground More than 40 Warning! Aways make sure you are in a safe pace whenever you are reading the face of the watch using the auto ight switch. Be especiay carefu when running or engaged in any other activity that can resut in accident or injury. Aso take care that sudden iumination by the auto ight switch does not starte or distract others around you. When you are wearing the watch, make sure that its auto ight switch is turned off before riding on a bicyce or operating a motorcyce or any other motor vehice. Sudden and unintended operation of the auto ight switch can create a distraction, which can resut in a traffic accident and serious persona injury. To turn the auto ight switch on and off In any mode (except when a setting screen is on the dispay), hod down D for about two seconds to togge the auto ight switch on ( dispayed) and off ( not dispayed). The auto ight switch on indicator ( ) is on the dispay in a modes whie the auto ight switch is turned on. Power Suppy This watch is equipped with a soar ce and a specia rechargeabe battery (secondary battery) that is charged by the eectrica power produced by the soar ce. The iustration shown beow shows how you shoud position the watch for charging. Exampe: Orient the watch so its face is pointing at a ight source. Soar ce The iustration shows how to position a watch with a resin band. that charging efficiency drops when any part of the soar ce is bocked by cothing, etc. You shoud try to keep the watch outside of your seeve as much as possibe. Even if the face of the watch is ony partiay bocked from ight, charging wi be reduced significanty. Important! Storing the watch for ong periods in an area where there is no ight or wearing it in such a way that it is bocked from exposure to ight can cause rechargeabe battery power to run down. Make sure that the watch is exposed to bright ight whenever possibe. This watch uses a specia rechargeabe battery to store power produced by the soar ce, so reguar battery repacement is not required. However, after very ong use, the rechargeabe battery may ose its abiity to achieve a fu charge. If you experience probems getting the specia rechargeabe battery to charge fuy, contact your deaer or CASIO distributor about having it repaced. Never try to remove or repace the watch s specia battery yoursef. Use of the wrong type of battery can damage the watch. A data stored in memory is deeted, and the current time and a other settings return to their initia factory defauts whenever battery power drops to Leve 4 and when you have the battery repaced. Turn on the watch s Power Saving function and keep it in an area normay exposed to bright ight when storing it for ong periods. This heps to keep the rechargeabe battery from going dead. Battery Power Leves The battery eve dia and digita dispay show you the current eve of the rechargeabe battery s power. The digita dispay aso shows a recover indicator, which ets you know when there is a arge oad being paced on the battery. Battery eve dia Dia and Leve Digita Dispay Function Status 1 A functions enabed. Recover indicator 2 3 4 (Charge soon aert) A functions enabed. Except for interna timekeeping and the C indicator, a functions and dispay indicators are disabed. A functions disabed. The battery eve dia shows the battery power eve in a modes except for the Stopwatch Mode. In the Stopwatch Mode, the battery eve dia indicates eapsed minutes. The fashing C indicator at Leve 3 tes you that battery power is very ow, and that exposure to bright ight for charging is required as soon as possibe. When battery power is at Leve 3, anaog hand movement and time caibration signa reception are disabed. At Leve 4, a functions are disabed and settings return to their initia factory defauts. Functions are enabed once again after the rechargeabe battery is charged, but you need to set the digita time and date, after the battery reaches Leve 3 from Leve 4. You wi not be abe to set any of the other settings unti the battery reaches Leve 2 after dropping to Leve 4. Dispay indicators reappear as soon as the battery is charged from Leve 4 to Leve 3. Leaving the watch exposed to direct sunight or some other very strong ight source can cause the battery eve dia to show a reading that is temporariy higher than the actua battery eve. The correct battery eve shoud be indicated after a few minutes. If you use the iumination or aarms a number of times during a short period, the recover indicator (R) appears on the dispay and the foowing operations become disabed unti battery power recovers. Iumination; Beeper tone; Coordination between digita and anaog timekeeping; Time caibration signa reception After some time, battery power wi recover and the recover indicator wi disappear, indicating that the above functions are enabed again. If the recover indicator appears frequenty, it probaby means that remaining battery power is ow. Leave the watch in bright ight to aow it to charge. Charging Precautions Certain charging conditions can cause the watch to become very hot. Avoid eaving the watch in the areas described beow whenever charging its rechargeabe battery. Aso note that aowing the watch to become very hot can cause its iquid crysta dispay to back out. The appearance of the LCD shoud become norma again when the watch returns to a ower temperature. Warning! Leaving the watch in bright ight to charge its rechargeabe battery can cause it to become quite hot. Take care when handing the watch to avoid burn injury. The watch can become particuary hot when exposed to the foowing conditions for ong periods. On the dashboard of a car parked in direct sunight Too cose to an incandescent amp Under direct sunight Charging Guide After a fu charge, timekeeping remains enabed for up to about five months. The foowing tabe shows the amount of time the watch needs to be exposed to ight each day in order to generate enough power for norma daiy operations. Exposure Leve (Brightness) Approximate Exposure Time Outdoor sunight (50,000 ux) 5 minutes Sunight through a window (10,000 ux) 24 minutes Dayight through a window on a coudy day (5,000 48 minutes ux) Indoor fuorescent ighting (500 ux) 8 hours Since these are the specs, we can incude a the technica detais. Watch is not exposed to ight Interna timekeeping Dispay on 18 hours per day, seep state 6 hours per day 1 ight operation (1.5 seconds) per day 10 seconds of aarm operation per day 5 times caibration reception per day Stabe operation is promoted by frequent charging. Recovery Times The tabe beow shows the amount exposure that is required to take the battery from one eve to the next. Exposure Leve Approximate Exposure Time (Brightness) Leve 4 Leve 3 Leve 2 Leve 1 Outdoor sunight (50,000 ux) Sunight through a window (10,000 ux) Dayight through a window on a coudy day (5,000 ux) Indoor fuorescent ighting (500 ux) 1 hour 3 hours 5 hours 49 hours 14 hours 71 hours 4 hours 20 hours The above exposure time vaues are a for reference ony. Actua required exposure times depend on ighting conditions. Reference This section contains more detaied and technica information about watch operation. It aso contains important precautions and notes about the various features and functions of this watch. Auto Return Features If you eave the watch in the Reca, Aarm (except for the target aarm countdown screen), or Hand Setting Mode for two or three minutes without performing any operation, it returns to the Timekeeping Mode automaticay. If you eave a screen with fashing digits on the dispay for two or three minutes without performing any operation, the watch automaticay exits the setting screen. Scroing The B and D buttons are used in various modes and setting screens to scro through data on the dispay. In most cases, hoding down these buttons during a scro operation scros through the data at high speed. Initia Screens When you enter the Dua Time or Aarm Mode, the data you were viewing when you ast exited the mode appears first. Radio-controed Timekeeping Precautions Strong eectrostatic charge can resut in the wrong time being set. Even when the watch is within the reception range of the transmitter, signa reception wi be impossibe if the signa is bocked by mountains or other geoogica formations between the watch and signa source. Signa reception is affected by weather, atmospheric conditions, and seasona changes. The time caibration signa bounces off the ionosphere. Because of this, such factors as changes in the refectivity of the ionosphere, as we as movement of the ionosphere to higher atitudes due to seasona atmospheric changes or the time of day may change the reception range of the signa and make reception temporariy impossibe. Even if the time caibration signa is received propery, certain conditions can cause the time setting to be off by up to one second. 5
The current time setting in accordance with the time caibration signa takes priority over any time settings you make manuay. The watch is designed to update the date and day of the week automaticay for the period January 1, 2000 to December 31, 2099. Setting of the date by the time caibration signa cannot be performed starting from January 1, 2100. This watch can receive signas that differentiate between eap years and non-eap years. Though this watch is designed to receive both time data (hour, minutes, seconds) and date data (year, month, day), certain signa conditions can imit reception to time data ony. Normay, the signa reception date shown by the ast signa screen is the date data incuded in the received time caibration signa. When ony time data is received, however, the ast signa screen shows the date as kept in the Timekeeping Mode at the time of signa reception. If you are in an area where proper time caibration signa reception is impossibe, the watch keeps time within ±15 seconds a month at norma temperature. If you have probems with proper time caibration signa reception or if the time setting is wrong after signa reception, check your Home Time Zone vaue and DST (summer time) settings, and transmitter mode setting. The foowing are the initia factory defauts for these settings. Setting Initia Factory Defaut GMT Differentia Vaue +1.0 (or DST +2.0): Modue 3733 +0.0 (or DST +1.0): Modue 3734 DST (summer time) DS A (Auto switching) Transmitter mode A (Automatic seection) 3733 To find out the modue number of your watch, ook at its back cover. The Modue number (3733 or 3734) wi be engraved inside the box on the back cover. Transmitters This watch is abe to receive time caibration signas transmitted in Germany (Mainfingen) and Engand (Rugby). You can seect either one of the transmitters, or you can configure the watch to seect the transmitter that has the strongest signa automaticay. The foowing expains how the watch determines which transmitter it shoud check first whie the watch is configured for automatic transmitter seection. Modue 3733 In this case: The watch does this: The first signa search operation after 1. Checks the Mainfingen signa first. factory defaut settings are in effect, or after 2. If the Mainfingen signa cannot be the Home Time Zone has been changed. received, checks the Rugby signa. Any case other than the above. 1. Checks the ast successfuy received signa first. 2. If the ast successfuy received signa cannot be received, checks the other signa. Modue 3734 In this case: The first signa search operation after factory defaut settings are in effect, or after the Home Time Zone has been changed. Any case other than the above. The watch does this: 1. Checks the Rugby signa first. 2. If the Rugby signa cannot be received, checks the Mainfingen signa. 1. Checks the ast successfuy received signa first. 2. If the ast successfuy received signa cannot be received, checks the other signa. Auto receive is turned on whenever the transmitter mode is A, D77.5, or M60. Auto receive is turned off when the transmitter mode setting is OFF. that you can change the transmitter mode setting when +0.0 or +1.0 is seected as the Home Time Zone. See To seect the transmitter mode beow. To seect the transmitter mode 1. In the Timekeeping Mode, press B to dispay the ast signa screen. 2. Hod down A unti the transmitter mode setting starts to fash, which indicates the setting screen. If hoding down A does not dispay the setting screen, check the current Home Time Zone setting. Press B to return to the Timekeeping Mode screen. See To specify your Home Time Zone for more information. 3. Use B or D to seect the transmitter mode setting you want to use. The foowing are the avaiabe transmitter mode settings. A: Automatic seection of the Mainfingen or Rugby signa D 77.5: Reception of the Mainfingen signa M 60: Reception of the Rugby signa OFF: Auto receive off 4. Press A to exit the setting screen and return to the ast signa screen. If you want to the return to the Timekeeping Mode screen, press B. Signa reception can take up to 14 minutes when the A option is seected. Timekeeping Resetting the seconds to 00 whie the current count is in the range of 30 to 59 causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are reset to 00 without changing the minutes. The year can be set in the range of 2000 to 2099. The day of the week is cacuated automaticay in accordance with the date. The watch s buit-in fu automatic caendar makes aowances for different month engths and eap years. Once you set the date, there shoud be no reason to change it except after you have the watch s battery repaced or when battery power drops to Leve 4. The current time for a time zones in the Timekeeping Mode and Dua Time Mode is cacuated in accordance with the Greenwich Mean Time (GMT) differentia of each zone, based on your Home Time Zone time setting. GMT differentia is cacuated by this watch based on Universa Time Coordinated (UTC* * ) data. UTC is the word-wide scientific standard of timekeeping. It is based upon carefuy maintained atomic (cesium) cocks that keep time accuratey to within microseconds. Leap seconds are added or subtracted as necessary to keep UTC in sync with the Earth s rotation. The reference point for UTC is Greenwich, Engand. 12-hour/24-hour Timekeeping Formats The 12-hour/24-hour timekeeping format you seect in the Timekeeping Mode is aso appied in a other modes. With the 12-hour format, the P (PM) indicator appears on the dispay for times in the range of noon to 11:59 p.m. and no indicator appears for times in the range of midnight to 11:59 a.m. With the 24-hour format, times are dispayed in the range of 0:00 to 23:59, without any indicator. Power Saving When turned on, Power Saving automaticay enters a seep state whenever the watch is eft for a certain period in an area where it is dark. The tabe beow shows how watch functions are affected by Power Saving. There are actuay two seep state eves: dispay seep and function seep. Eapsed Time in Dark Operation 3 to 4 days Digita dispay off, but a functions enabed (Dispay Seep) 8 days or more (Function Seep) Digita dispay off A functions, incuding anaog timekeeping, disabed Interna timekeeping maintained Wearing the watch inside the seeve of cothing can cause it to enter the seep state. To recover from the seep state Perform any one of the foowing operations. Move the watch to a we-it area. It can take up to two seconds for the dispay to turn on. Press any button. Ange the watch towards your face for reading. To turn Power Saving on and off 1. Whie any screen other than the ast signa screen is on the dispay in the Timekeeping Mode, hod down A unti the GMT differentia vaue starts to fash, which indicates the setting screen. 2. Press C nine times unti the Power Saving on/off screen appears. 3. Press D to togge Power Saving on (on) and off (OFF). 4. Press A to exit the setting screen. Adjusting Dia Hand Positions You can use the procedure in this section to adjust the position of the stopwatch 1/20 second dia hand and the battery eve dia hand whenever they do not aign with the 12 o cock position when you enter the Stopwatch Mode. Stopwatch 1/20 second dia Battery eve dia Important! Never move the battery eve dia hand to any position other than 12 o cock. If you do, it wi not indicate the battery power eve correcty. To adjust dia hand positions 1. In the Timekeeping Mode, press C five times to enter the Hand Setting Mode. 2. Hod down A unti 0 0 starts to fash, which indicates the anaog setting screen. 3. Press A to dispay the dia hand setting screen. The dia hand setting screen shows 00:00.00, with the two zeros on the far right fashing. This indicates that the stopwatch 1/20 second dia is seected for adjustment. 4. Press D to advance the hand of the stopwatch 1/20 second dia one step, unti it is aigned with the 12 o cock position. 5. After the 1/20 second dia hand is aigned propery, press C. This causes the two far eft zeros of the 00:00.00 figures to fash, which indicates that the battery eve dia is seected for adjustment. 6. Press D to advance the hand of the battery eve dia one step, unti it is aigned with the 12 o cock position. 7. Press A to exit the setting screen. To return to the Timekeeping Mode, press C. Iumination Precautions The iumination provided by the ight may be hard to see when viewed under direct sunight. Iumination automaticay turns off whenever an aarm sounds. Frequent use of iumination shortens the battery operating time. Auto ight switch precautions Wearing the watch on the inside of your wrist, movement of your arm, or vibration of your arm can cause frequent activation of the auto ight switch and iuminate the face of the watch. To avoid running down the battery, turn off the auto ight switch whenever engaging in activities that might cause frequent iumination of the face. that wearing the watch under your seeve whie the auto ight switch is turned on can cause frequent iumination of the face and can run down the battery. More than 15 degrees too high Iumination may not turn on if the face of the watch is more than 15 degrees above or beow parae. Make sure that the back of your hand is parae to the ground. Iumination turns off after about two seconds, even if you keep the watch pointed towards your face. Static eectricity or magnetic force can interfere with proper operation of the auto ight switch. If iumination does not turn on, try moving the watch back to the starting position (parae with the ground) and then tit it back towards your face again. If this does not work, drop your arm a the way down so it hangs at your side, and then bring it back up again. Under certain conditions, iumination may not turn on unti about one second after you turn the face of the watch towards you. This does not necessariy indicate mafunction of the auto ight switch. You may notice a very faint cicking sound coming from the watch when it is shaken back and forth. This sound is caused by mechanica operation of the auto ight switch, and does not indicate a probem with the watch. 6