Operation Guide 3347
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.
•This watch does not have a time zone that corresponds to the Greenwich Mean Time differential of
Expose the watch to bright light to charge its batteries before using it. You can use this watch even as its batteries are being charged by exposure to bright light.
•Be sure to read “Batteries” 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 (
) is flashing on the Power saving indicator 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.
About This Manual
(Light)
(Light)
•Depending on the model of your watch, display text appears either as dark figures on a light background, or light figures on a dark background. All sample displays in this manual are shown using dark figures on a light background.
•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.
General Guide
•Press C to change from mode to mode.
•In any mode, press L to illuminate the display.
World Time Mode
Timekeeping Mode
Press C.
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Alarm Mode | Countdown Timer Mode |
▲ | ▲ |
Hand Setting Mode | Stopwatch Mode |
▲ | ▲ |
Radio-controlled Atomic Timekeeping
Hour hand
Minute hand
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Seconds | Day of week | |||
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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 in the United States (Fort Collins, Colorado).
•The U.S. time calibration signal can be picked up by the watch while in North America*.
*The term “North America” in this manual refers to the area that consists of Canada, the continental United States, and Mexico.
To display the digital time and last signal screen
•In the Timekeeping Mode, press B 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. |
| Seconds Seconds | Hour: |
| Day | ||
| Minutes | ||
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Press B. | B | B |
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▲ | ▲ | ▲ |
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Day of week | Month. Day | PM indicator |
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▲ | B |
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Press D. |
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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 outside the ranges of the U.S. time signal transmitter, you have to adjust the current time setting manually as required. See “Timekeeping” for more information about manual time setting.
•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.
Day of
Seconds week
DST indicator | Last Signal | Reception date | Reception time |
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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 |
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 a time calibration signal reception with the press of a |
To set your Home City
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City code
1.In the Timekeeping Mode, hold down A until the city code starts to flash, which indicates the setting screen.
2.Use D (east) and B (west) to scroll through the city codes until the one you want to use as your Home City is displayed.
•The following are the city codes for major cities in North America.
LAX: Los Angeles, San Francisco, Las Vegas, Seattle, Vancouver, Tijuana
DEN: Denver, El Paso, Edmonton, Culiacan
CHI: Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg, Mexico City
NYC: New York, Detroit, Miami, Boston, Montreal
•Note that this watch does not have a city code that corresponds to Newfoundland.
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
3. Press A to exit the setting screen.
•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.
• The watch should not be on its side or facing the wrong way.
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