Operation Guide 3040

Calibration Signal Reception Precautions

•Auto receive can be performed while the watch is in the Timekeeping Mode or World Time Mode only.

•Signal reception is not possible when any one of the following conditions exists.

•Timer operation in progress

•Low battery indicator (“LOW” or “CHG”) on the display

•Recover indicator (RECOV) displayed

•Pressing any button while auto receive is in progress will terminate it.

•Make sure you are within the range of the calibration signal transmitter before performing the reception operation. Remember that geographic contours, nearby buildings, the season, the time of day, can make reception impossible even when you are within range of the transmitter.

•Proper reception may be impossible if there is something blocking the signal. If reception is unsuccessful, try again.

•This watch is designed to adjust its current time setting in accordance with the calibration signal transmitted in Japan, the United States, the U.K., or Germany. Note that you will need to make your own adjustments when using this watch outside of the range of the time calibration signal transmitters.

•When the watch is unable to adjust its time signal using the

calibration signal for some reason, timekeeping accuracy is within

±20 seconds per month.

•Strong electrostatic charge can cause timekeeping error.

•Signal reception is cancelled if an alert operation starts while it is being performed.

•The watch’s calendar shows dates up to the year 2099. Attempting a receive operation after that causes an error.

Troubleshooting

1. The watch cannot receive the time calibration signal.

•Is the signal being transmitted?

Though the time data of the Japanese calibration signal (Call Sign: JJY) is maintained by the Japan Standard Time Group of the National Institute of Information and Communications Technology (NICT), it may sometimes be interrupted for periodic maintenance work, or because of lightning or other problems.

•Are you within the reception range of a transmitter?

See “Reception Ranges” for information about areas where the watch can receive the signal.

•Is there something in the immediate area that may be interfering with reception?

Even if you are within the reception range of a transmitter, objects between you and the transmitter or electrical noise can interfere with reception. Avoid such areas (see “Location”) during signal reception.

•Do you have the correct Home City code selected?

Calibration signal reception will be impossible if you have any city that is not included under “Reception Ranges” selected as your Home City. For details about setting the correct Home City, see “To configure Home City settings”.

•Is auto receive turned off?

Use the procedure under “To turn auto receive on and off” to turn on auto receive.

•Is a timer operation in progress?

Signal reception cannot be performed while a timer operation is in progress. To stop a timer operation, enter the Timer Mode and then press the Dbutton.

•Is the watch in any mode other than the Timekeeping Mode or World Time Mode during the auto receive times (midnight, 1:00 a.m., 2:00 a.m., 3:00 a.m., 4:00 a.m., and 5:00 a.m.)?

Auto receive is performed only when the watch is in the Timekeeping Mode or World Time Mode. It is not performed if the watch is in any other mode.

2.Time calibration signal reception is successful, but the hourly time signal and current time are slightly off.

•After the watch receives the time calibration signal, it performs an internal decoding process before updating its time setting. Because of this, the time setting may be slightly off (within one second).

3.Time calibration signal reception is successful, but the current time is one hour fast.

•Do you have summer time (DST) turned on? Use the procedure under “To configure Home City settings” to change the summer time setting to OFF or AUTO.

4.Time calibration signal reception is successful, but the current time setting is wrong.

•Is TYO (Tokyo) selected for your Home City? For details about setting the correct Home City, see “To configure Home City settings”.

5. I can’t turn auto receive on and off

•You will not be able to turn auto receive on or off if you have any city that is not included under “Reception Ranges” selected as your Home City. For details about setting the correct Home City, see “To configure Home City settings”.

6. What time is auto receive performed?

•Auto receive is performed in the middle of the night, when reception conditions are best. Before going to bed at night, place the watch near a window, with 12 o’clock facing in the general direction of the transmitter.

7. How can I perform manual receive?

•In the Receive Mode, hold down the Dbutton (lower right) for about two seconds. “RC” will appear on the display to indicate that manual receive has started. Place the watch near a window, with 12 o’clock facing in the general direction of the transmitter.

8. How can I view the last reception date and time?

•Enter the Receive Mode. The display will alternate at two-second intervals between the date and time of the last successful signal reception.

Using Dual Time

Use the Cbutton to enter the Timekeeping Mode as shown under
“Modes and Indicators”.

• If you cannot receive the calibration signal or if the current time

setting is incorrect after signal reception, check the current setup

of the watch.

• The following are the watch’s factory default settings, which are

Dual time lets you view the current time in your Home City and in one more time zone (Secondary City) on the same screen. A simple operation lets you make the current Secondary City your

❚To switch Dual Time cities

configured automatically whenever you have the battery of the

watch replaced.

Auto Receive

 

On

 

 

 

Home City

 

Tokyo

 

 

 

Summer Time

 

Auto (according to signal data)

 

 

 

Home City, and the current Home City your Secondary City.

•For details about setting the current time, see “To configure Home City settings”.

•Switching your Home City and Secondary City with each other will switch both the city codes and current time settings. Depending on the city codes, switching cities may also cause a change in the time calibration signal transmitter setting. See “Reception Range” for more information.

Secondary City Time

In the Timekeeping Mode, hold down the Dbutton for about three seconds until the watch beeps and the Home City and Secondary City times switch positions on the display.

•The dual time screen will be on the display after you switch Dual Time cities. Press the Dbutton to return to the Timekeeping Mode.

Secondary City Time

Home Time

Home Time

Home Time

Home Time Screen

Dual Time Screen

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