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Casio 5142 User Manual

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Module No. 5142
Printed in Japan
Imprimé au Japon
CASIO COMPUTER CO., LTD.
Gedruckt in Japan
6-2, Hon-machi 1-chome
Shibuya-ku, Tokyo 151-8543, Japan
MA1107-000000A

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  • Page 1 Module No. 5142 Printed in Japan Imprimé au Japon CASIO COMPUTER CO., LTD. Gedruckt in Japan 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan MA1107-000000A...
  • Page 2 WARRANTY CARD Module No. 5142 MODEL: ..............................DATE OF PURCHASE: ..........................CUSTOMER’S NAME: ..........................OFFICIAL DEALER STAMP: CASIO COMPUTER CO., LTD. Printed in Japan 6-2, Hon-machi 1-chome Shibuya-ku, Tokyo 151-8543, Japan MA1107-000000A...
  • Page 3 Because of this, the radio-controlled atomic timekeeping function will not display the correct time for Newfoundland, Canada. Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage or loss suffered by you or any third party arising through the use of this...
  • Page 4 About This Manual In this manual, operations are performed using the watch’s crown, and the three buttons indicated by the letters A, B and C. Hands and Indicators z Hour Hand x Second Hand c Minute Hand v Mode Disk: Rotates to indicate the current mode and other information.

  • Page 5: Using The Crown

    Using the Crown The crown of this watch has a button part and a ring part. You can use the crown’s button and ring to perform a number of different crown operations. Locking the Crown To lock the crown, push down its ring part as far as it will go as you rotate the ring away from you until it is relatively tight.
  • Page 6 • Note that rotating the ring without pushing it down as far as it will go will change the settings of the watch. When locking the crown, be sure to press down firmly on the ring as you rotate it. Unlocking the Crown Rotate the ring part of the crown towards you until it loosens completely.
  • Page 7 Pulling the Crown Out After unlocking the crown, grasp the ring and pull the crown out. Rotating the Crown With the crown pulled out, grasp the ring and rotate the crown towards you to move the hands of the watch. You can also perform high-speed hand movement using the operations described below.
  • Page 8 High-speed 1 With the crown pulled out, rotate it rapidly away from you two times. High-speed 2 After starting the High-speed 1 operation, rotate the crown rapidly away from you two more times. High-speed Cancel Rotate the crown towards you or press any button.
  • Page 9 Note • You can use high-speed hand movement when configuring time settings in the Timekeeping Mode, Alarm Mode, or Countdown Timer Mode, or when adjusting the home positions of the hands. Pushing the Crown In Carefully press the button of the crown the push the crown back in. Important! •...

  • Page 10: To Disable Crown Button Mode Switching

    Note • If you do not perform any operation for more than three minutes after pulling out the crown, crown operations will become disabled automatically. If this happens, push the crown back in and then pull it out again to re-enable crown operations. Disabling Crown Button Mode Switching You can use the following operation to disable crown button mode switching, so the watch does not change modes when the crown button is pressed.

  • Page 11: To Re-Enable Crown Button Mode Switching

    To re-enable crown button mode switching Hold down the crown as you press A.

  • Page 12: Things To Check Before Using The Watch

    Things to check before using the watch 1. Press and hold the crown button (without unlocking the crown) for at least two seconds to enter the Timekeeping Mode, and then observe the movement of the x Second Hand. Is the x Second Hand moving smoothly at one-second intervals? The watch is charged sufficiently.
  • Page 13 2. Check the Home City and the daylight saving time (DST) settings. Use the procedure under “To configure Home City settings” (page E-45) to configure your Home City and daylight saving time settings. Important! Proper time calibration signal reception depends on correct Home City, time, and date settings in the Timekeeping Mode.

  • Page 14: Table Of Contents

    Contents About This Manual Using the Crown To disable crown button mode switching To re-enable crown button mode switching E-10 Things to check before using the watch E-16 Charging the Watch E-23 To recover from the sleep state E-24 Radio Controlled Atomic Timekeeping E-30 To get ready for a receive operation E-33...
  • Page 15 E-40 To determine the watch’s current mode E-40 To return to the Timekeeping Mode from any other mode E-41 To select a mode E-44 Timekeeping E-45 Configuring Home City Settings E-45 To configure Home City settings E-51 To toggle the Home City time between standard time and daylight saving time E-53 To manually override a time calibration standard time/daylight saving...
  • Page 16 E-65 To perform an elapsed time operation E-65 To pause at a split time E-69 Using the Stopwatch (Stopwatch lap mode) E-70 To enter and exit the Stopwatch Lap Mode E-71 To perform an elapsed time operation E-71 To perform lap time measurement E-72 To recall lap data E-73 Using the Countdown Timer...
  • Page 17 E-82 To stop the alarm E-83 Checking the Current Time in a Different Time Zone E-84 To view the time in another time zone E-86 To check whether a time zone is AM or PM E-86 To specify standard time or daylight saving time (DST) for a city E-88 Adjusting Home Positions E-89 To adjust home positions...

  • Page 18: Charging The Watch

    Charging the Watch The face of the watch is a solar panel that generates power from light. The generated power charges a built-in rechargeable battery, which powers watch operations. The watch charges whenever it is exposed to light. Charging Guide Whenever you are not When wearing the watch, wearing the watch, be sure...
  • Page 19 Warning! Leaving the watch in bright light for charging can cause it to become quite hot. Take care when handling the watch to avoid burn injury. The watch can become particularly hot when exposed to the following conditions for long periods. •...
  • Page 20 Power Levels You can get an idea of the watch’s power level by observing the movement of the x Second Hand in the Timekeeping Mode. • If the x Second Hand is moving normally at one-second intervals, power is at Level 1. •...
  • Page 21 Level Hand Movement Function Status Normal. All functions enabled Beeper, time calibration signal x Second Hand moves at two-second intervals. reception, and countdown timer n Day changes to 1 (home position). operation disabled x Second Hand stopped. z Hour Hand and c Minute Hand stopped at All functions disabled 12 o’clock.
  • Page 22 • A short while after exposing the watch to light after its battery charge has run down will cause the x Second Hand to move counterclockwise until it stops at second 57 on the face. This indicates that charging has started. See page E-21 for information about required charging times.
  • Page 23 Charging Times Level Change *2 Daily Level 3 Level 2 Level 1 Exposure Level (Brightness) Operation Outdoor sunlight (50,000 lux) 8 minutes 2 hours 23 hours Window sunlight (10,000 lux) 30 minutes 6 hours 87 hours Window sunlight on cloudy day (5,000 lux) 48 minutes 9 hours 140 hours...
  • Page 24 Power Saving Power Saving enters a sleep state automatically whenever the watch is left for a certain period in an area where it is dark. The table below shows how watch functions are affected by Power Saving. • There actually are two sleep state levels: “second hand sleep” and “function sleep”. Elapsed Time in Dark Operation 60 to 70 minutes (second hand...

  • Page 25: To Recover From The Sleep State

    To recover from the sleep state Move the watch to a well-lit area, press any button, or perform a crown operation (push in, pull out, rotate). E-23...

  • Page 26: Radio Controlled Atomic Timekeeping

    Radio Controlled Atomic Timekeeping This watch receives a time calibration signal and updates its time setting accordingly. However, when using the watch outside of areas covered by time calibration signals, you will have to adjust the settings manually as required. See “Configuring Current Time and Date Settings Manually”...
  • Page 27 The watch can receive the signal from If your Home City Code setting is this: the transmitter located here: Anthorn (England), Mainflingen LON (LONDON), PAR (PARIS), ATH (ATHENS) (Germany) HKG (HONG KONG) Shangqiu City (China) Fukushima (Japan), Fukuoka/Saga TYO (TOKYO) (Japan) HNL (HONOLULU), ANC (ANCHORAGE), LAX (LOS ANGELES), DEN (DENVER),...
  • Page 28 Important! • The areas covered by HNL (HONOLULU) and ANC (ANCHORAGE) are quite far from the calibration signal transmitters, so certain conditions may cause reception problems. • When HNL (HONOLULU) or HKG (HONG KONG) is selected as the Home City, only the time and date are adjusted according to the time calibration signal.
  • Page 29 Approximate Reception Ranges UK and German Signals North American Signal 2,000 miles Anthorn (3,000 kilometers) 500 kilometers 600 miles (1,000 kilometers) 1,500 kilometers Fort Collins Mainflingen The Anthorn signal is receivable within this area. E-27...
  • Page 30 Japanese Signals Chinese Signal Fukushima 500 kilometers Changchun 500 kilometers Beijing Shangqiu Fukuoka/Saga Shanghai Chengdu Hong Kong 1,500 kilometers 1,000 kilometers E-28...
  • Page 31 • Even when the watch is within range of a transmitter, signal reception may be impossible due to the effects of geographic contours, structures, weather, the time of year, the time of day, radio interference, etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the influence of the conditions listed above becomes even greater.

  • Page 32: To Get Ready For A Receive Operation

    To get ready for a receive operation Confirm that the watch is in the Timekeeping Mode. If it isn’t, push in and hold the crown for at least two seconds to enter the Timekeeping Mode. Place the watch in a location where signal reception is good. •...
  • Page 33 • Signal reception may be difficult or even impossible under the conditions described below. Inside or Inside a Near Near a Near Among among vehicle household construction high-tension or behind buildings appliances, site, airport, power lines mountains office or other equipment, sources of or a mobile...
  • Page 34 What you should do next depends on whether you are using Auto Receive or Manual Receive. • Auto Receive: Leave the watch over night in the location you selected in step 2. See “Auto Receive” on page E-32 for details. •...

  • Page 35: To Perform Manual Receive

    To perform manual receive In the Timekeeping Mode (page E-44), keep B depressed (for about two seconds) as the x Second Hand goes through the following sequence. • Moves to Y (or YES for some models) or N (NO) to indicate the last signal reception result, then to R (READY).
  • Page 36 x Second Hand indicates the operations the watch is currently performing. When the x Second Hand is It means this: pointed here: R (READY) Watch is setting up for reception. W (WORK) Reception is in progress. Reception was completed Y (YES) successfully.

  • Page 37: To Check The Result Of The Latest Receive Operation

    Note • To interrupt a receive operation and return to the Timekeeping Mode, press any button. To check the result of the latest receive operation In the Timekeeping Mode, press B. • x Second Hand will move to Y (YES) for about one second if the latest receive operation was successful, or N (NO) if it was not.
  • Page 38 Radio-controlled Atomic Timekeeping Precautions • Strong electrostatic charge can result in the wrong time setting. • Even if a receive operation is successful, certain conditions can cause the time setting to be off by up to one second. • The watch is designed to update the date and day of the week automatically for the period January 1, 2000 to December 31, 2099.

  • Page 39: Mode Reference Guide

    Mode Reference Guide Your watch has six “modes”. The mode you should select depends on what you want to do. To do this: Enter this mode: See: • View the current time in your Home City and in one of 29 other cities around the globe •...
  • Page 40 To do this: Enter this mode: See: Set an alarm time Alarm Mode E-78 View the current time in one of 29 cities around the World Time Mode E-83 globe Mode Disk Pointers The v Mode Disk uses three different pointers to indicate a variety of different information: a mode pointer, a split pointer, and a lap pointer.
  • Page 41 Split Pointer The split pointer is marked on the v Mode Disk. Whenever you enter the Stopwatch Split Mode (page E-63), it indicates the current status of the stopwatch operation. While a normal stopwatch elapsed time measurement operation is in progress, the split pointer will point to RUN.

  • Page 42: To Determine The Watch's Current Mode

    Selecting a Mode With this watch, everything starts from the Timekeeping Mode. To determine the watch’s current mode Check what the mode pointer is indicating on the v Mode Disk as shown under “To select a mode” (page E-41). To return to the Timekeeping Mode from any other mode Press and hold the crown button (without unlocking the crown) for at least two seconds.

  • Page 43: To Select A Mode

    To select a mode Each press of the crown button cycles through the modes in the sequence shown below. The v Mode Disk rotates so the selected mode is indicated by the mode pointer. Movement of the v Mode Disk may cause the watch hands to move slightly. This is due to fine adjustment of hand positions and does not indicate malfunction.
  • Page 44 Press the crown button. (No need to Timekeeping Mode Stopwatch Split Mode unlock crown.) (Elapsed time and Mode pointer points to TM. split times) Mode pointer points to ST. Then v Mode Disk rotates until the split pointer points World Time Mode to STP (stopped) or RUN (running).
  • Page 45 From any other mode, hold down C for about two seconds to enter the Stopwatch LAP Mode. The v Mode Disk will rotate until the lap pointer points at the current lap number (1 through 5, or To return to the Timekeeping Mode, hold down C or the crown button for about two seconds.

  • Page 46: Timekeeping

    Timekeeping Use the Timekeeping Mode to set and view the current time and date. To enter the Timekeeping Mode from another mode, press and hold the crown button (without unlocking the crown) for at least two seconds. Hands and Indicators z Hour Hand x Second Hand c Minute Hand...

  • Page 47: Configuring Home City Settings

    Configuring Home City Settings There are two Home City settings: actually selecting the Home City and selecting either standard time or daylight saving time (DST). To configure Home City settings Note • This watch does not have a city code that corresponds to Newfoundland.
  • Page 48 • If you do not perform any operation with the crown for about three minutes after pulling it out, crown operations will become disabled and the watch hands will no longer move when you rotate the crown. If this happens, push the crown back in and then pull it out again.
  • Page 49 Press A to toggle the currently selected city code between standard time and daylight saving time. • In the city code setting mode, the v Mode Disk indicates STD (standard time) or DST (daylight saving time). • Note that an AT setting (STD-AT or DST-AT) will be indicated only if the currently selected city code is one that supports time calibration signal reception.
  • Page 50 After the settings are the way you want, push the crown back in to return to the Timekeeping Mode. Next, lock the crown. • Rotating the ring without pushing it down as far as it will go will change the settings of the watch.
  • Page 51 When a transmitted daylight saving time signal is received, switches to STD-AT daylight saving time (DST-AT) automatically. When a transmitted standard time signal is received, switches to standard DST-AT time (STD-AT) automatically. Even if a transmitted daylight saving time signal is received, standard time (STD) setting does not change.
  • Page 52 • Note that you cannot switch between STD (standard time) and DST (daylight saving time) while UTC* is selected as your Home City. Coordinated Universal Time, the world-wide scientific standard of timekeeping. The reference point for UTC is Greenwich, England. •...

  • Page 53: To Toggle The Home City Time Between Standard Time And Daylight Saving Time

    To toggle the Home City time between standard time and daylight saving time Perform steps 1 through 3 under “To configure Home City settings” on page E-45. • Each time you select a city code, the z Hour Hand and c Minute Hand move to the current time for that city code.
  • Page 54 After the settings are the way you want, push the crown back in to return to the Timekeeping Mode. Next, lock the crown. • Rotating the ring without pushing it down as far as it will go will change the settings of the watch.

  • Page 55: To Manually Override A Time Calibration Standard Time/Daylight Saving Time Setting

    To manually override a time calibration standard time/daylight saving time setting Perform steps 1 and 2 under “To configure Home City STD by manual setting settings” on page E-45. • Each time you select a city code, the z Hour Hand, c Minute Hand, and v Mode Disk move to the current time for that city code.
  • Page 56 Push the crown back in to return to the Timekeeping Mode. Next, lock the crown. • Rotating the ring without pushing it down as far as it will go will change the settings of the watch without locking the crown. Be sure to press down firmly on the ring as you rotate it.

  • Page 57: Configuring Current Time And Date Settings Manually

    Configuring Current Time and Date Settings Manually You can configure current time and date settings manually when the watch is unable to receive a time calibration signal. To change the current time setting manually In the Timekeeping Mode, unlock the crown and then pull it out.
  • Page 58 Change the Home City and daylight saving time (DST) settings, if you want. • For details about these settings, see steps 3 and 4 under “To configure Home City settings” (page E-45). Hold down B for about two seconds. This will enter the time setting mode.
  • Page 59 Rotate the crown to adjust the time (hour and minute) setting. • Rotating the crown two full consecutive turns away from you will cause the c Minute Hand to start moving clockwise. Rotating the crown another two full consecutive turns away from you will cause the c Minute Hand to start moving at high speed.
  • Page 60 • If you want to change the date setting at this time, press B and perform the procedure starting from step 3 under “To change the current date setting manually” (page E-59). After the settings are the way you want, push the crown back in to return to the Timekeeping Mode.

  • Page 61: To Change The Current Date Setting Manually

    To change the current date setting manually In the Timekeeping Mode, unlock the crown and then pull it out. • This will cause the x Second Hand to move to the city code of the currently selected Home City. Hold down B for about two seconds.
  • Page 62 After the n Day stops moving, press B. This will enter the month setting mode. • x Second Hand will move to the currently selected month. This is the month setting mode. Rotate the crown to adjust the month setting. Setting the month E-60...
  • Page 63 Press B. This will enter the year setting mode. • z Hour Hand will move to the number that represents the tens digit of the year and the c Minute Hand will move to the number that represents the ones digit.
  • Page 64 Rotate the crown to adjust the year setting. • If you want to change the time setting at this time, press B and then perform the procedure starting from step 4 under “To change the current time setting manually” (page E-55). After the settings are the way you want, push the crown back in to return to the Timekeeping Mode.

  • Page 65: Using The Stopwatch (Stopwatch Split Mode)

    Using the Stopwatch (Stopwatch Split Mode) The stopwatch measures elapsed time and split times. What is a split time? A split time is the time elapsed from the start point of a race up to any point along the way in the race. Example: Split times at the 10km point and at other points along the way in a marathon Split...
  • Page 66 Hands and Indicators z Hour Hand: Indicates the stopwatch minute count (1 revolution = 60 minutes). x Second Hand: Indicates the 1/20 (0.05)-second count during stopwatch operation. c Minute Hand: Indicates the stopwatch seconds count. v Mode Disk: Mode pointer points to ST. Then disk rotates until the split pointer points to STP (stopped), RUN (running), or SPL (split).

  • Page 67: To Perform Elapsed Time Measurement

    To perform elapsed time measurement Press the crown button to navigate to the Stopwatch Split Mode. • The mode pointer will point to ST on the v Mode Disk. Then the disk will rotate until the split pointer points to STP (stopped), RUN (running), or SPL (split). Now you can perform either of following stopwatch operations.
  • Page 68 • b Chronograph Signal changes in accordance the operation being performed: STP (stopped), RUN (running), or SPL (split). STP (stopped) RUN (running) SPL (split) Note • The Stopwatch Split Mode can indicate elapsed time up to 59 minutes, 59.95 seconds. •...
  • Page 69 • An ongoing stopwatch operation will continue even if you pull out the crown to perform some setting operation. • In the following cases, the hands of the watch are moving, so pressing B will not perform a reset operation. While the hands are moving to elapsed timekeeping after you enter the Stopwatch −...
  • Page 70 • x Second Hand indicates the 1/20 (0.05)-second count for the first 30 seconds of a stopwatch elapsed time operation. After that, the hand stops at 12 o’clock, but 1/20 (0.05)-second timing continues internally after the first 30 seconds. The x Second Hand will jump to the current value whenever A (Stop) is pressed.

  • Page 71: Using The Stopwatch (Stopwatch Lap Mode)

    Using the Stopwatch (Stopwatch lap mode) You can use the Stopwatch Lap Mode to measure elapsed time and lap times, and to recall lap times. Up to five lap times can be stored in memory. There is also memory to record the fastest lap time. Though no more lap times are stored after five times are in memory, the fastest lap time continues to be updated as required.

  • Page 72: To Enter And Exit The Stopwatch Lap Mode

    Hands and Indicators z Hour Hand: Indicates the stopwatch minute count (1 revolution = 60 minutes). x Second Hand: Indicates the 1/20 (0.05)-second count during stopwatch operation. c Minute Hand: Indicates the stopwatch seconds count. v Mode Disk: Mode disk rotates until the lap pointer points to a lap number.

  • Page 73: To Perform An Elapsed Time Operation

    To perform an elapsed time operation Start Stop (Restart) (Stop) Reset To perform lap time measurement ..Start Lap (LAP1) Lap (LAP2) Stop Reset • With each lap time measurement, the v Mode Disk will move so the lap pointer points to the next sequential lap number.

  • Page 74: To Recall Lap Data

    To recall lap data While in the Stopwatch Lap Mode, unlock the crown and then pull it out to enter the Data Recall Mode. • v Mode Disk will move until the lap pointer points to LAP 1, and the hands of the watch will move until they indicate the time recorded for LAP 1.

  • Page 75: Using The Countdown Timer

    Using the Countdown Timer The countdown timer can be configured within a range of one minute to 60 minutes. An alarm sounds for about 10 seconds when the timer reaches zero, and a count up elapsed time operation starts. Hands and Indicators z Hour Hand: Indicates the elapsed time hour.

  • Page 76: To Specify The Countdown Start Time

    To specify the countdown start time Press the crown button to navigate to the Countdown Timer Mode. • The mode pointer will point to TR on the v Mode Disk. Unlock the crown and then pull it out. This enters the countdown start time setting mode.
  • Page 77 Rotate the crown to set the countdown start time. • Rotating the crown two full consecutive turns away from you will cause the c Minute Hand to start moving clockwise. Rotating the crown another two full consecutive turns away from you will cause the c Minute Hand to start moving at high speed.

  • Page 78: To Perform A Countdown Timer Operation

    To perform a countdown timer operation Start Stop Reset • Pressing B while the Countdown Timer is stopped resets the displayed time to the start time specified by you. • Pressing B will not perform a reset while the watch is performing any of the following operations.

  • Page 79: To Stop The Alarm

    • Pulling out the crown to perform a crown operation while a Countdown Timer countdown or elapsed time measurement is in progress will automatically stop the ongoing Countdown Timer operation and reset to the countdown start time. Elapsed Time Measurement Following Countdown When the countdown reaches zero, the watch starts to count up elapsed time in one-second increments, for up to 24 hours.

  • Page 80: Using The Alarm

    Using the Alarm When the alarm is turned on, an alarm will sound for about 10 seconds each day when the time in the Timekeeping Mode reaches the preset alarm time. This is true even if the watch is not in the Timekeeping Mode. Hands and Indicators z Hour Hand: Indicates the currently set alarm time hour.

  • Page 81: To Change The Alarm Time Setting

    To change the alarm time setting Press the crown button to navigate to the Alarm Mode. • The mode pointer will point to AL on the v Mode Disk. Unlock the crown and then pull it out to enter the alarm setting mode. •...
  • Page 82 Rotate the crown to set the alarm time. • Rotating the crown two full consecutive turns away from you will cause the c Minute Hand to start moving clockwise. Rotating the crown another two full consecutive turns away from you will cause the c Minute Hand to start moving at high speed.
  • Page 83 After the setting is the way you want, push the crown back in to exit the alarm setting mode. Next, lock the crown. • The alarm always works based on the time kept in the Timekeeping Mode. • The watch will return to the Timekeeping Mode automatically if you do not perform any operation in the Alarm Mode for about two or three minutes.

  • Page 84: To Check The Am/Pm Setting Of The Alarm

    To check the AM/PM setting of the alarm In the Alarm Mode, press B and the x Second Hand will move to either A (AM) or P (PM). • x Second Hand will return to the current ON/OFF setting after about one second.

  • Page 85: Checking The Current Time In A Different Time Zone

    Checking the Current Time in a Different Time Zone You can use World Time to view the current time in one of 29 time zones around the globe. The currently selected city is called the “World Time City”. Hands and Indicators NYC (NEW YORK) z Hour Hand: Indicates the hour of the current time in the World Time City.

  • Page 86: To View The Time In Another Time Zone

    To view the time in another time zone Unlock the crown and then pull it out. • x Second Hand points to the currently selected World Time city code. • The mode pointer will point to either STD (standard time) or DST (daylight saving time) on the v Mode Disk, which indicates the current daylight saving time setting.
  • Page 87 • If you think that the time indicated for the selected World Time City is not correct, it probably means that there is something wrong with your Home City settings. Use the procedure under “To configure Home City settings” (page E-45) to correct the Home City settings.

  • Page 88: To Check Whether A Time Zone Is Am Or Pm

    To check whether a time zone is AM or PM In the World Time Mode, press B and the x Second Hand will move to either A (AM) or P (PM). • x Second Hand will return to the city code you selected after about one second.
  • Page 89 Press A to toggle the time for the currently selected city code between STD (standard time) and DST (daylight saving time). The auto mode (STD-AT, DST-AT) settings cannot be selected in the World Time Mode. Push the crown back in to return to the World Time Mode.

  • Page 90: Adjusting Home Positions

    Adjusting Home Positions Strong magnetism or impact can cause the hands and/or day of the watch to be off, even if the watch is able to perform the signal receive operation. If this happens, perform the applicable home position adjustment procedures in this section. •...

  • Page 91: To Adjust Home Positions

    To adjust home positions Press and hold the crown button (without unlocking the crown) for at least two seconds to enter the Timekeeping Mode. Unlock the crown and then pull it out. • This will cause the x Second Hand to move to the city code of the currently selected Home City.
  • Page 92 • Each press of B while the watch is in the home position adjustment mode will cycle through the adjustment settings as shown below. v Mode Disk z Hour c Minute n Day x Second • Be sure to rotate the crown away from you only when adjusting home positions. You cannot adjust home positions by rotating the crown towards you.
  • Page 93 After confirming that the v Mode Disk is at the proper home position, press B. This will advance to z Hour Hand home position adjustment. • If the z Hour Hand moves to 12 o’clock, it is in the correct home position. If it doesn’t, rotate the crown to move it to 12 o’clock.
  • Page 94 After confirming that the x Second Hand is at the proper home position, press B. This will advance to day home position adjustment. • n Day is in the correct home position if it shows 1. If it doesn’t, rotate the crown to change the day to 1.

  • Page 95: Troubleshooting

    Troubleshooting Hand Movement and Position ■ ■ I lost track of what mode the watch is in. Refer to “To select a mode” (page E-41). To return directly to the Timekeeping Mode from any other mode, press and hold the crown button (without unlocking the crown) for at least two seconds.
  • Page 96 ■ ■ The x Second Hand is moving at two-second intervals. ■ ■ All the watch’s hands are stopped at 12 o’clock and none of the buttons work. Power may be low. Expose the watch to light until the x Second Hand starts moving normally, at one-second intervals (page E-18).
  • Page 97 ■ ■ Hands suddenly stop moving. Button operation also is disabled. The watch may be in the power recovery mode (page E-20). Do not perform any operation until the hands return to their normal positions (in about 15 minutes). The hands should return to their correct positions when normal operation returns.
  • Page 98 • The watch’s STD-AT (standard time)/DST-AT (daylight saving time) setting can be configured for auto switching in accordance with a time calibration signal. You also can manually override the STD/DST setting configured by the calibration signal. If you use manual override to select a setting, timekeeping will be off by one hour following an STD/DST switching data in your area, even if the watch is receiving a time calibration signal.
  • Page 99 Crown Operations The watch seems to change modes on its own. ■ ■ The watch will change modes whenever you press the button part of the crown. You can disable mode switching when the crown button is pressed, if you want. See “To disable crown button mode switching”...
  • Page 100 Nothing happens when I press the crown button. ■ ■ To prevent unintentional operation, the button press operation of the crown is disabled automatically for about eight seconds after you push the crown back in. It will become re-enabled after about eight seconds. See “Pushing the Crown In”...
  • Page 101 Time Calibration Signal The information in this section applies only when LON (LONDON), PAR (PARIS), ATH (ATHENS), HNL (HONOLULU), ANC (ANCHORAGE), LAX (LOS ANGELES), DEN (DENVER), CHI (CHICAGO), NYC (NEW YORK), HKG (HONG KONG), or TYO (TOKYO) is selected as the Home City. You need to adjust the current time manually when any other city is selected as the Home City.
  • Page 102 ■ ■ The x Second Hand indicates N (NO) when I check the result of the latest receive operation. Possible Cause Remedy Page • You are wearing or moving the watch, or performing a button Keep the watch in an area where reception operation during the signal receive conditions are good while the signal receive E-30...
  • Page 103 ■ ■ The current time setting changes after I set it manually. You may have the watch configured for Auto Receive of the time calibration signal (page E-35), which will cause the time to be adjusted automatically according to your currently selected Home City.
  • Page 104 ■ ■ Auto Receive is not performed or I cannot perform Manual Receive. Possible Cause Remedy Page Auto Receive will not be performed if the The watch is not in the Timekeeping watch is not in the Timekeeping Mode. E-40 Mode.
  • Page 105 ■ ■ Signal reception is being performed successfully, but the time and/or day is wrong. Possible Cause Remedy Page Check your Home City setting and correct E-11 Your Home City setting is wrong. it, if necessary. E-45 The watch may have been exposed to magnetism or strong impact, which Adjust the watch’s hand and day home E-88...
  • Page 106 Alarm The alarm does not sound. ■ ■ • Power may be low. Expose the watch to light until the x Second Hand starts moving normally, at one-second intervals (page E-18). • The crown may be pulled out. Push the crown back in. World Time The indicated World Time is wrong.

  • Page 107: Specifications

    Specifications Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration) Timekeeping: Hour, minutes (hand moves every 10 seconds), seconds, day Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099 Other: Home City code (can be assigned one of 29 city codes and Coordinated Universal Time);...
  • Page 108 World Time: 29 cities (29 time zones) and Coordinated Universal Time Other: Daylight Saving Time (summer time) / Standard Time Stopwatch: Measuring capacity: 59'59.95" Measuring unit: 1/20 (0.05) seconds Measuring mode: Elapsed time Lap time (Memories: 5, Fastest lap memory) Countdown Timer: Measuring unit: 1 second Input range: 1 to 60 minutes (1-minute increments)

  • Page 109: Operating Precautions

    Operating Precautions Water Resistance • The following applies to watches with WATER RESIST or WATER RESISTANT marked on the back cover. Enhanced Water Resistance Under Water Daily Use Resistance Under Daily Atmospheres Atmospheres Atmospheres On watch front or on Marking 5BAR 10BAR 20BAR...
  • Page 110 A trained technician will know how to check your watch for proper water resistance whenever you have its battery replaced. Battery replacement requires the use of special tools. Always request battery replacement from your original retailer or from an authorized CASIO Service Center. E-108...
  • Page 111 • Some water-resistant watches come with fashionable leather bands. Avoid swimming, washing, or any other activity that causes direct exposure of a leather band to water. • The inside surface of the watch glass may fog when the watch is exposed to a sudden drop in temperature.
  • Page 112 Should you notice any breakage, discoloration, looseness or other problem with the band, immediately contact your original retailer or an authorized CASIO Service Center to have it checked, repaired, or replaced. Note that you will be charged for any repair or replacement of the band.
  • Page 113 Impact • Your watch is designed to withstand impact incurred during normal daily use and light activity such as playing catch, tennis, etc. Dropping the watch or otherwise subjecting it to strong impact, however, can lead to malfunction. Note that watches with shock-resistant designs (G-SHOCK, Baby-G, G-ms) can be worn while operating a chain saw or engaging in other activities that generate strong vibration, or while engaged in strenuous sports activities (motocross, etc.).
  • Page 114 Electrostatic Charge • Exposure to very strong electrostatic charge can cause the watch to display the wrong time. Very strong electrostatic charge even can damage electronic components. Chemicals • Do not allow the watch to come into contact with thinner, gasoline, solvents, oils, or fats, or with any cleaners, adhesives, paints, medicines, or cosmetics that contain such ingredients.
  • Page 115 Semi-transparent resin parts can become discolored due to sweat and dirt, and if exposed to high temperatures for long periods. • Contact an authorized CASIO Service Center to have resin components replaced. Note that you will be charged for replacement costs. E-113...
  • Page 116 Natural Leather and Imitation Leather Bands • Allowing the watch to remain in contact with other items or storing it together with other items while it is wet for long periods can cause the color of the other items to transfer to the natural leather or imitation leather band of the watch. Be sure to dry off the watch thoroughly before storing it and make sure it is not in contact with other items.
  • Page 117 Metal Components • Failure to clean dirt from a metal band can lead to formation of rust, even if the band is stainless steel or plated. If the watch is exposed to sweat or water, wipe it thoroughly with a soft, absorbent cloth and then store it in a well-ventilated location to dry.

  • Page 118: User Maintenance

    Should your band become badly cracked or worn, be sure to have it replaced with a new one. Request band replacement from your original retailer or an authorized CASIO Service Center. Note that you will be charged for band replacement costs, even if your watch is still covered by its warranty.
  • Page 119 • Remember that you wear your watch next to your skin, just like a piece of clothing. Because of this, you should always keep your watch clean. Use a soft, absorbent cloth to wipe off any dirt, sweat, water, or other foreign matter from the case and band.
  • Page 120 However, charging and discharging of the battery over time leads naturally to a loss in its ability to sustain a charge and shortens its operating time. If this happens, contact your original retailer or authorized CASIO Service Center. E-118...
  • Page 121 WARRANTY CARD...
  • Page 122 CASIO Service Center or the store where purchased. There will be no parts or labor charge to you for valid warranty services.
  • Page 123 The problem is caused by a fire or other natural calamity; The problem is caused by improper repair or adjustment made by anyone other than a CASIO Service Center; The case, glass, battery or band (in the case of a wristwatch) is damaged or worn;...
  • Page 124 ABOVE LIMITATIONS OR EXCLUSIONS SHALL NOT IN SUCH CASES APPLY. THIS WARRANTY GIVES YOU SPECIFIC RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE, JURISDICTION TO JURISDICTION, OR COUNTRY TO COUNTRY. NOTHING IN THIS WARRANTY AFFECTS YOUR STATUTORY RIGHTS. THANK YOU FOR CHOOSING CASIO. W-12...
  • Page 125 • If you have any problems with this product, please contact a Casio Service Center or the store where purchased. URL: http://world.casio.com/repair/ W-13...
  • Page 126 City Code Table...
  • Page 127 City Code Table UTC Offset/ City Code City GMT Differential PAGO PAGO (PPG) Pago Pago –11 HONOLULU (HNL) Honolulu* –10 ANCHORAGE (ANC) Anchorage* –9 LOS ANGELES (LAX) Los Angeles* –8 DENVER (DEN) Denver* –7 CHICAGO (CHI) Chicago* –6 NEW YORK (NYC) New York* –5...
  • Page 128 UTC Offset/ City Code City GMT Differential JEDDAH (JED) Jeddah TEHRAN (THR) Tehran +3.5 DUBAI (DXB) Dubai KABUL (KBL) Kabul +4.5 KARACHI (KHI) Karachi DELHI (DEL) Delhi +5.5 DHAKA (DAC) Dhaka YANGON (RGN) Yangon +6.5 BANGKOK (BKK) Bangkok HONG KONG (HKG) Hong Kong* TOKYO...
  • Page 129  * Indicates city codes that support time calibration signal reception.  • Based on data as of December 2010.  • The rules governing global times (UTC offset and GMT differential) and summer time are determined by each individual country.

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