Operation Guide 2607 2637 2687
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 display of the watch is blank...
If the sleep indicator (S
/SLEEP
) is on the display, it means that the display is blank because the watch’s
Sleep indicator | Power Saving function has shut it to conserve power. |
| |
| Power Saving automatically turns off the display and |
| enters a sleep state whenever your watch is left in an area |
| where it is dark for a certain period. |
| • The initial factory default setting is Power Saving on. |
•The watch recovers from the sleep state if you move it to
a
* It can take up to two seconds for the display to turn on.
• See “Power Saving Function” for more information.
About This Manual
•The operational procedures for Modules 2607, 2637 and 2687 are identical. All of the illustrations in this manual show Module 2607.
•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.
(Light) | (Light) | (Light) |
Module 2607 | Module 2637 | Module 2687 |
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.
▲
▲
Timekeeping
Use the Timekeeping Mode to set and view the current time and date.
•The watch is equipped with a Time Recorder feature that lets you record the current Home City time (month, day, hour, minutes, seconds, and DST on/off setting) with the touch of a button. See “To record a Time Recorder time” for more information.
•Pressing D displays the Last Signal screen (date and time that the time calibration signal was last received) in the Timekeeping Mode.
PM | Day of week | Receive time |
indicator |
|
|
| Press D. | |
| ▲ | ▲ |
| Month – Day | Receive date |
| Hour : Minutes Seconds | Last Signal Screen |
|
| |
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.
•Before using the watch in Western Europe, first use the procedure under “Setting Up the Watch for Use in Western Europe” to set the time in accordance with a time calibration signal.
•Note that after you set your Home City (the city where you normally use the watch) code, you must also turn on the watch’s time calibration signal receiver if you want to enable auto time calibration. See “About Auto Receive” for more information.
•See “Setting the Time and Date Manually” for information about manual settings.
Setting Up the Watch for Use in Western Europe
You need to make the following three settings before using this watch in Western Europe. The following provides a general overview of the setting procedure. For full details, see “Setting the Time and Date Manually” and “Time Calibration Signal Reception”.
•Specify the city code for your Home City (the city where you will normally use the watch).
•Select the auto Daylight Saving Time (summer time) setting.
•Perform the manual time calibration signal receive operation to set the current time.
To set up the watch for use in Western Europe
Time Recorder Mode
▲
Stopwatch Mode | ▲ | |
Alarm Mode | ||
| ||
| ▲ |
•When getting ready to receive the time calibration signal, position the watch as shown in the nearby illustration, and place it near a window in a location where there are no nearby metal objects.
Resin Band Metal Band
•The watch should not be on its side or facing the wrong way.
•See the information under “Time Calibration Signal Reception Precautions” if you experience problems with time calibration signal reception.
•After signal reception is complete, the display of the watch changes to the Last Signal screen.
Time Calibration Signal Reception
This watch is designed to pick up a time calibration signal and update its time setting in accordance with the signal. There are two different methods you can use to receive the signal: Auto Receive and Manual Receive. With Auto Receive, the watch automatically receives the calibration signal four times each day and makes appropriate adjustments. With Manual Receive, you perform a specific button operation to receive the calibration signal.
• This watch is able to receive the time calibration signal |
transmitted from Mainflingen, Germany (located 25 |
kilometers southeast of Frankfurt). Signal reception is |
possible within the area represented by a circle with a |
radius of about 1000 kilometers. |
• At distances further than about 500 kilometers, the |
signal may become weak and reception may be |
impossible under certain conditions. |
• Signal reception may be poor in the shaded area on the |
map, even though it is within 1,000 kilometers of the |
signal transmitter. |
City code
Receiving indicator
1.In the Timekeeping Mode, hold down Auntil the city code starts to flash, which indicates the setting screen.
2.Use D(+) and
•The following are the city codes for major cities in the Western Europe time zones.
BER and PAR: Berlin, Paris, Milan, Rome, Amsterdam, Hamburg, Frankfurt, Vienna
LON: London
3.Press C and the Daylight Saving Time (summer time) setting screen appears.
4.Use Dto select AUTO (auto DST).
•Auto DST specifies auto switching between Daylight Saving Time (DST) and Standard Time.
5.Press A twice to exit the setting screen.
6.Hold down D for about two seconds until the watch beeps.
•Release Dand the message RC! appears to indicate that signal reception has started.
•Time calibration signal reception takes from two to six minutes. Take care that you do not move the watch during this time.
Frankfurt
Note
•If you are using the time calibration signal to set the time for this watch, be sure to correctly set your Home City. Otherwise, there is the chance that the watch will not set the correct time. See “Setting the Time and Date Manually” for details.
•Note that signal reception is possible only when the watch is within range of a time calibration signal transmitter, and BER, PAR, LON, or ATH is selected as the Home City code.
•See “City Code Table” for a complete list of available city codes.
•The current time setting in accordance with the time calibration signal takes priority over any time settings you make.
•Auto receive is turned on when the watch is shipped from the factory.
•See the information under “Time Calibration Signal Reception Precautions” if you experience problems with time calibration signal reception.
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