Operation Guide 2639 2819
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your purchase, be sure to read this manual carefully.
•The initial factory default Home City setting is TYO (Tokyo). This means that the watch is initially configured to receive the time calibration signals transmitted in Japan. If you are planning to use the watch in North America, be sure to change the Home City setting. “To set your Home City” for more information.
•This watch does not have a time zone that corresponds to the Greenwich Mean Time differential of
Keep the watch exposed to bright light
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| Bright Light |
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| The electricity generated by the solar cell of the watch is | |
l | l | l | l | stored by a | ||
l l l l l l l | ||||||
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| where it is not exposed to light causes the battery to run | ||||
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| down. Make sure the watch is exposed to light as much as | |
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•When you are not wearing the watch on your wrist,
Solar cell | position the face so it is pointed at a source of bright |
| light. |
| • You should try to keep the watch outside of your sleeve |
| as much as possible. Even if the face of the watch is |
| only partially blocked from light, charging will be reduced |
| significantly. |
• The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can cause the battery to run down, which will cause some watch functions to be disabled. If the battery goes dead, you will have to
•The actual level at which some functions are disabled depends on the watch model.
•Frequent display illumination can run down the battery quickly and require charging. The following guidelines give an idea of the charging time required to recover from a single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window Approximately 50 minutes exposure to indoor fluorescent lighting
•Be sure to read “Power Supply” for important information you need to know when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving function has turned off the display to conserve power.
•See “Power Saving Function” for more information.
About This Manual
•The operational procedures for Modules 2639 and 2819
are identical. All of the illustrations in this manual show Module 2819.
• 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 |
(Light) | mode. Further details and technical information can be |
Module 2639 | found in the “Reference” section. |
Battery charges in the light.
Solar cell | Bright Light | Electrical |
(Converts light to |
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electrical power.) |
| energy |
| LEVEL 1 | All |
| functions | |
| LEVEL 2 | |
Charge | enabled | |
LEVEL 3 |
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Rechargeable battery
Battery discharges in the dark.
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| LEVEL 1 |
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| Dis- | LEVEL 2 |
| Some |
| charge | LEVEL 3 |
| functions |
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| disabled |
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(Light)
Module 2819
General Guide
•Press Cto 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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Radio-controlled Atomic Timekeeping
Time Recorder Mode
▲
Stopwatch Mode | ▲ | |
Alarm Mode | ||
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| ▲ |
PM | Day of week |
indicator |
Month – Day
Hour : Minutes Seconds
Current Time Setting
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) and the time calibration signals transmitted in Japan.
•The U.S. time calibration signal can be picked up by the watch while in North America*.
*The term “North America” in this User’s Guide refers to the area that consists of Canada, the continental United States, and Mexico.
• Note that this watch does not have a city code that corresponds to Newfoundland.
4.Press A twice to exit the setting screen.
•The first press of A displays the
Important!
•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 operation (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.
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.
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 of the range of the U.S. and Japanese time signal transmitters, you need to adjust the time manually as required. See “Timekeeping” for information about manual settings.
•Auto Receive
With auto receive, the watch automatically picks up the time calibration signal four times a day at 2:00 a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m. For more information, see “About Auto Receive”.
•Manual Receive
Manual receive lets you start a time calibration receive operation with the press of a button. For more information, see “To perform manual receive”.
Important!
To set your Home City
Transmitter indicator City code
E/C/M/P indicator
1.In the Timekeeping Mode, hold down Auntil the transmitter indicator starts to flash, which indicates the setting screen.
2.Press C once so the city code is flashing on the display.
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 North America.
LAX(P (Pacific) indicator):
Los Angeles, San Francisco, Las Vegas, Seattle, Vancouver, Tijuana
DEN(M (Mountain) indicator):
Denver, El Paso, Edmonton, Culiacan CHI(C (Central) indicator):
Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg, Mexico City
NYC(E (Eastern) indicator):
New York, Detroit, Miami, Boston, Montreal
•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 watch should not be on its side or facing the wrong way.
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