Operation Guide 3219
Receive successful ξ If the receive operation is successful, the reception
date and time appear on the display, along with
the GET indicator. The watch will return to the Timekeeping Mode if you press D or if you do not perform any button operation for about one or two minutes.
Receive failed | ξ If the current reception fails but a previous reception | |
| (within the last 24 hours) was successful, the display | |
| shows the receiving indicator and the ERR indicator. | |
| If the ERR indicator only is displayed (without the | |
| receiving indicator), it means that all of the receive | |
| operations over the past 24 hours have failed. The | |
| watch will return to the Timekeeping Mode without | |
| changing the time setting if you press D or if you do | |
| not perform any button operation for about one or | |
If there was a previously | two minutes. | |
Note | ||
successful reception | ||
| To interrupt a receive operation and return to the | |
| Timekeeping Mode, press D. | |
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Signal Level Indicator
During manual receive, the signal level indicator displays the signal level as shown below.
| Weak | Strong |
| (Unstable) | (Stable) |
| As you watch the indicator, keep the watch in a location | |
Signal level indicator | that best maintains stable reception. |
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| ξ Even under optimum reception conditions, it can take |
about 10 seconds for reception to stabilize.
ξNote that weather, the time of day, surroundings, and other factors all can affect reception.
To check the latest signal reception results
In the Timekeeping Mode, press D (page
ξ When receive is successful, the display shows the time and date that receive was successful.
ξ To return to the Timekeeping Mode, press D.
Note
The receiving indicator will not be displayed if you have adjusted the time or date setting manually since the last receive operation.
To turn auto receive on and off
Receiving indicator 1. In the Timekeeping Mode, press D (page
2.Hold down A until the current auto receive setting (On or OFF) and receiving indicator start to flash. This is the setting screen.
ξ Note that the setting screen will not appear if the currently selected Home City is one that does not support time calibration reception.
| 3. | Press D to toggle between auto receive on (On) and |
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| off (OFF). |
On/Off status | 4. | Press A to exit the setting screen. |
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Radio-controlled Atomic Timekeeping Precautions
ξStrong electrostatic charge can result in the wrong time setting.
ξEven if a receive operation is successful, certain conditions can cause the time setting to be off by up to one second.
ξThe watch is designed to update the date and day of the week automatically for the period January 1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed starting from January 1, 2100.
ξIf you are in an area where signal reception is not possible, the watch keeps time with the precision noted in “Specifi cations” (page
ξThe receive operation is disabled under any of the following conditions.
−While power is at Level 3 (L) or lower (page
−While the watch is in the power recovery mode (page
−When the watch is in the function sleep state (“Power Saving”, page
−While a countdown timer operation is in progress (page
ξA receive operation is cancelled if an alarm sounds while it is being performed.
ξThe Home City setting reverts to the initial default of TYO (Tokyo) whenever the battery power level drops to Level 5 or when you have the rechargeable battery replaced. If this happens, change the Home City to the setting you want (page
Mode Reference Guide
Your watch has 5 “modes”. The mode you should select depends on what you want to do.
To do this: | Enter this mode: | See: | |
ξ View the current date in the Home City |
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ξ Confi gure Home City and daylight saving time (DST) |
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settings |
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ξ Confi gure time and date settings manually | Timekeeping Mode | ||
ξ Perform a time calibration receive operation |
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ξ Check whether the last receive operation was |
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successful |
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View the current time in one of 48 cities | World Time Mode | ||
(29 time zones) around the globe | |||
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Set an alarm time | Alarm Mode | ||
Use the stopwatch to measure elapsed time | Stopwatch Mode | ||
Use the countdown timer | Countdown Timer Mode |
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Selecting a Mode
ξThe illustration below shows which buttons you need to press to navigate between modes.
Timekeeping Mode | World Time Mode | Alarm Mode | Stopwatch Mode | Countdown Timer Mode |
C | C | C |
| C |
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| C |
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