Operation Guide 4378 4379
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.
General Guide
•Press Cto change from mode to mode.
•In any mode, press B to illuminate the display.
Timekeeping Mode
Press C.
▲
Radio-controlled Timekeeping
Hour hand | This watch receives a time calibration signal and updates | |
its time setting accordingly. The time calibration signal | ||
Minute hand | ||
includes both Standard Time and Daylight Saving Time | ||
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| (summer time) data. | |
| • This watch is designed to pick up the time calibration | |
| signal transmitted from Rugby, England and the signal | |
| from Mainflingen, Germany. |
Day
Day of week | Second hand |
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.
To set your Home City
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| 1. In the Timekeeping Mode, hold down Auntil the city |
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| code starts to flash, which indicates the setting screen. | |||
| • The second hand will move at high speed to the 12 | |||||||||
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| o’clock position, where it will stop. | ||||||
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| 2. Use D(east) and B(west) to select the city code you | ||
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| want to use as your Home City. | |||||||||
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| • The following are the city codes for major cities in the | |||
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| Western Europe time zones. |
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| City code |
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| LON: London | |||||
PAR and BER: Paris, Berlin, Milan, Rome, Amsterdam, Hamburg, Frankfurt, Vienna
ATH: Athens
3. Press A to exit the setting screen.
•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.
•The watch will receive the time calibration signal automatically from the applicable transmitter (in the middle of the night) and update its settings accordingly. For information about the relationship between city codes and transmitters, see “Transmitters”.
World Time Mode | Alarm Mode |
▲ | ▲ |
Hand Setting Mode | Stopwatch Mode |
▲ | ▲ |
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 |
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| Receiving indicator |
Day | ▲Receiving |
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| Press A. | Indicator and | Seconds |
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| Seconds Count | |
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| A |
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| Current Time | ▲ |
| A | Hour : | |
Day of week ▲ | Screen | ||
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| Minutes | |
Press D. |
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| PM indicator |
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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
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 receives the time calibration signal automatically up to six times a day. When any auto receive is successful, the remaining auto receive operations are not performed. 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 watch should not be on its side or facing the wrong way.
•Proper signal reception can be difficult or even impossible under the conditions listed below.
Inside or | Inside a | Near | Near a | Near high- | Among or |
among | vehicle | household | construction | tension | behind |
buildings |
| appliances, | site, airport, or | power lines | mountains |
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| office | other sources |
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| equipment, | of electrical |
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| or a mobile | noise |
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| phone |
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