Operation Guide 3309 3345
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to carefully read this manual and keep it on hand for later reference when necessary.
Expose the watch to bright light to charge its battery before using it.
You can use this watch even as its battery is being charged by exposure to bright light.
•Be sure to read “Battery” of this manual for important information you need to know when exposing the watch to bright light.
If the digital display of the watch is blank...
If the Power Saving indicator (PS) is flashing on the display, it means that the display is blank because the watch’s Power Saving function has turned it off to conserve power. Power Saving automatically turns off the display and enters a sleep state whenever your watch is left for a certain period in an area where it is dark. If the watch is kept in the dark for a longer period, the analog hands will also stop moving after a few days.
• The initial factory default setting is Power Saving on.
•The watch will recover from the sleep state if you move it to a
•See “Power Saving Function” for more information.
General Guide
•Press Cto change from mode to mode.
•In any mode, press B to illuminate the display.
Timekeeping Mode
| Press C. |
| Hand Setting Mode |
▲ | ▲ |
Radio-controlled Timekeeping
About This Manual
•Button operations are indicated using the letters shown
in the illustration.
• Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.
Battery Level IndicatorWorld Time Mode
▲ | ▲ |
or |
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| Alarm Mode |
Stopwatch Mode |
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▲ | ▲ |
Hour hand
Minute hand
Day
Day of week
Second hand
This watch receives a time calibration signal and updates its time setting accordingly. The time calibration signal includes both Standard Time and Daylight Saving Time (summer time) data.
•This watch is designed to pick up the time calibration signal transmitted from Rugby, England and the signal from Mainflingen, Germany.
To display the digital time and last signal screen
•In the Timekeeping Mode, press A to cycle through the digital time screens as shown below.
•In the Timekeeping Mode, press D to display the last signal screen. The last signal screen shows the date and time of the last successful time calibration signal reception.
Date Screen |
| Receiving |
| Receiving |
Day |
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▲Indicator and |
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| Press A. | Seconds Count |
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| ▲ | ▲ | A | Seconds |
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| Current Time |
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| A |
| Hour : | |
Day of week ▲ | Screen |
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| Minutes | |||
Press D. |
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| PM indicator |
Current Time Setting
This watch automatically adjusts its time setting in accordance with a time calibration signal. You can also perform a manual procedure to set the time and date, when necessary.
•The first thing you should do after purchasing this watch is to set your Home City, which is the city where you will normally use the watch. For more information, see “To set your Home City” below.
•When using the watch in an area that is outside of the range of the transmitters in Rugby and Mainflingen, you need to manually adjust the time as required. See “Timekeeping” for information about manual settings.
•The analog time of this watch is synchronized with the digital time. Because of this, the analog time setting is automatically adjusted whenever you change the digital setting. See “Analog Timekeeping” for more information.
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Reception date |
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2 seconds | Reception Time |
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Last Signal Screen | 2 seconds |
2 seconds |
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Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.
• Auto Receive |
With auto receive, the watch automatically picks up the time calibration signal five |
To set your Home City
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City code
1.In the Timekeeping Mode, hold down Auntil the transmitter indicator (AT, DCF, MSF) starts to flash, which indicates the setting screen.
•If the displayed transmitter indicator shows something other than AT, use Dto display AT before advancing to the next step.
•The second hand will move at high speed to the 12 o’clock position, where it will stop.
2.Press Cto display the city code setting screen.
3.Use D(east) and B(west) to select the city code you want to use as your Home City.
•The following are the city codes for major cities in the Western Europe time zones.
LON: London
PAR and BER: Paris, Berlin, Milan, Rome, Amsterdam, Hamburg, Frankfurt, Vienna
4. Press A twice to exit the setting screen.
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”. |
• Manual Receive |
Manual receive lets you start time calibration signal reception with the press of a |
button. For more information, see “To perform manual receive”. |
Important!
•When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, with its 12 o’clock side facing towards a window. Make sure there are no metal objects nearby.
Resin Band Metal Band
•The first press of Adisplays the
•The second hand will advance at high speed to the correct position in accordance with seconds count of the digital time, and resume normal movement from there.
•Normally, your watch should show the correct time as soon as you select your Home City Code. If it does not, it should adjust automatically after the next auto receive (in the middle of the night). You can also perform manual receive or you can set the time manually.
•If you are in an area that does not use Daylight Saving Time (summer time), turn off the DST setting.
•See “Transmitters” for details about the transmitter indicator.
•The watch should not be on its side or facing the wrong way.
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