USER’S GUIDE 2456
General Guide
•Press C to change from mode to mode. After you perform an operation in any mode, pressing C returns to the Timekeeping Mode.
•In any mode, press L to illuminate the display for about two seconds.
Alarm Mode
Timekeeping Mode
Press C.
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Timekeeping
Use the Timekeeping Mode to set and view the current time and date. You can also display the Last Signal and World Time screens.
Last Signal | Timekeeping |
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Receive date | Day of week | Month – Day | ||
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Press D. |
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| Hour : Minutes |
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Receive time |
| Current time in the | ||
| PM indicator | Seconds | selected city code | |
•The Last Signal screen shows the time and date of the last successful time calibration signal reception.
•The World Time screen shows the data you were viewing when you last exited the World Time Mode.
Current Time Setting
Normally, you do not need to do anything to set the current time as long as you are within an area in West Europe where the watch can pick up the time calibration signal. You can also set the current time manually when you are outside the range of the signal.
•Before using the watch after purchasing it, use the procedure under “Selecting Your Home City Code” (page
•Note that after you set your Home City 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” (page
•See “Setting the Time and Date Manually” for information about manual settings.
Setting the Time and Date Manually
The times displayed in the Timekeeping Mode and World Time Mode are linked. Even if you plan to use the watch without enabling auto time calibration, be sure to select a Home City code (the city code whose time and date you are setting), before you set the time and date.
To set the current time and date manually
City codecurrent Auto Receive On/Off setting starts to flash, which indicates the setting screen.
2.Press C to move the flashing in the sequence shown below to select other settings.
Day Counter | World Time Mode |
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Stopwatch Mode | Telememo Mode |
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Selecting Your Home City Code
You can select a city code for your Home City (the city where you normally use the watch). This data can be changed any time you move to another geographic area.
•See “City Code Table” at the back of this manual for a complete list of available codes.
To select your Home City code
City code | 1. In the Timekeeping Mode, hold down A until the | |
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| current Auto Receive On/Off setting starts to flash, |
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| which indicates the setting screen. |
2.Press C three times to move the flashing to the City Code setting.
3.Use D (+) and B
4.Press A to exit the setting screen.
Time Calibration Signal Reception
This watch is designed to pick up a time calibration signal transmitted from Mainflingen, Germany 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 three times each day and makes appropriate adjustments. With Manual Receive, you perform a specific button operation to receive the calibration signal.
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 the “To select your Home City code” for details.
•This watch automatically switches between DST and standard time while BER is selected as the home city code. For any other home city code, you must perform the procedure under “To set the current time and date manually” to switch between DST and standard time.
•Time calibration reception is limited to specific geographic areas in West Europe.
•The current time setting in accordance with the time calibration signal takes priority over any time settings you make.
•The watch is designed to automatically update the date and day of the week for the period January 1, 2000 to December 31, 2039. Setting of the date by the time calibration signal cannot be performed starting from January 1, 2040.
•This watch can receive signals that differentiate between leap years and non- leap years.
•Auto Receive is turned on when the watch is shipped from the factory.
•See the information under “Time Calibration Signal Reception Precautions” (page
To perform manual time calibration signal reception
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3.When the setting you want to change is flashing, use B and/or D to change it as described below.
Setting | Button Operations | ||
Auto Receive | Press D to toggle auto receive on and off. | ||
DST | Press D to toggle between Daylight Saving TIme (ON) | ||
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City Code | Use D (+) and B | ||
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Setting | Button Operations | ||
Seconds |
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Hour, Minutes, |
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Year, Month, Day |
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•Auto Receive setting is used for time calibration signal reception only. See “About Auto Receive” for details.
•See “City Code Table” at the back of this manual for a complete list of available codes.
•Daylight Saving Time (DST) advances the time setting by one hour from Standard Time. Remember that no all countries or even local areas use Daylight Saving Time.
4.Press A to exit the setting screen.
Current time
Receive indicator
1.Place the watch on a stable surface to its top (12 o’clock side) is facing in the general direction of Frankfurt, Germany.
•This puts the watch in the optimum position for time calibration signal reception.
2.In the Timekeeping Mode, hold down D for about two seconds, until the watch beeps.
•At this time, the 
indicator on the watch’s display should scroll from left to right, which indicates that signal reception has started.
•Time calibration signal reception takes from four to 11 minutes. Take care that you do not move the watch during this time.
•After signal reception is complete, the display of the watch changes to the Last Signal screen, which shows the new signal receive date and time.
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