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Operation Guide 3217 3275
Approximate Reception Ranges
U.K. and German Signals
1,500 kilometers
Anthorn
500 kilometers
The Anthorn signal
is receivable within
this area.
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• Signal reception may not be possible at the distances noted below during certain
times of the year or day. Radio interference also may cause problems with reception.
Mainflingen (Germany) or Anthorn (England) transmitters: 500 kilometers
(310 miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
Shangqiu (China) transmitter: 500 kilometers (310 miles)
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
• See the information under "Signal Reception Troubleshooting" (page E-32) if you
experience problems with time calibration signal reception.
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Your Home City
1
2
HKG
Standard Time and
1:00 am
2:00 am
BJS
Daylight Saving Time
TPE
Standard Time
Midnight
1:00 am
SEL
TYO
HNL
Standard Time and
Midnight
1:00 am
ANC
Daylight Saving Time
YVR
LAX
YEA
DEN
MEX
CHI
NYC
YHZ
YYT
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About the Signal Strength Indicator
The signal strength indicator shows the strength of the calibration signal being
received. For best reception, be sure to keep the watch in a location where signal
strength is strongest. The signal strength indicator is displayed while an auto or
manual receive operation is in progress.
Settings updated indicator
Weak
Signal strength indicator
(Level 1)
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the signal strength indicator to indicate signal
strength.
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To perform manual receive
1. Enter the Timekeeping Mode (page E-10).
Receiving
2. Hold down D for about two seconds until
flash on the display. This indicates that manual receive
is in progress.
• Time calibration signal reception takes from two to
seven minutes. Take care that you do not perform
any button operations or move the watch during this
time.
• If the receive operation is successful, the reception
date and time appear on the display, along with the
Receive successful
GET
indicator.
3. After manual receive is complete, press D to return to
normal timekeeping.
• The watch also will return to normal timekeeping if you
do not perform any button operation for about one or
two minutes.
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Mainflingen
North American Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Auto Receive Start Times
3
4
5
6
3:00 am
4:00 am
5:00 am
2:00 am
3:00 am
4:00 am
5:00 am
2:00 am
3:00 am
4:00 am
5:00 am
*Next day
Strong
(Level 3)
starts to
Japan Signals
500 kilometers
Fukuoka/Saga
1,000 kilometers
Signals are receivable in the Taiwan area when reception conditions are good.
1,500 kilometers
500 kilometers
Chengdu
Shangqiu
About Auto Receive
The watch receives the time calibration signal automatically up to 6 times a day
(5 times a day for the Chinese calibration signal). When any auto receive is
successful, the remaining auto receive operations are not performed. The reception
schedule (calibration times) depends on your currently selected Home City, and
whether standard time or Daylight Saving Time is selected for your Home City.
Your Home City
1
2
LIS
Standard Time
1:00 am
2:00 am
LON
Daylight Saving Time
2:00 am
3:00 am
MAD
Standard Time
2:00 am
3:00 am
PAR
Daylight Saving Time
3:00 am
4:00 am
ROM
BER
STO
ATH
Standard Time
3:00 am
4:00 am
Daylight Saving Time
4:00 am
5:00 am
MOW
Standard Time
4:00 am
5:00 am
Daylight Saving Time
5:00 am
Midnight*
Note
• When a calibration time is reached, the watch will receive the calibration signal only
if it is in either the Timekeeping Mode or World Time Mode. Reception is not
performed if a calibration time is reached while you are configuring settings.
• Auto receive of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the Timekeeping Mode time is set correctly).
Before going to bed for the night, remove the watch from your wrist, and put it in a
location where it can receive the signal easily.
• The watch receives the calibration signal for two to seven minutes everyday when
the time in the Timekeeping Mode reaches a calibration time. Do not perform any
button operation within seven minutes before or after the calibration times. Doing so
can interfere with correct calibration.
• Remember that reception of the calibration signal depends on the current time in the
Timekeeping Mode. The receive operation will be performed whenever the display
shows any one of the calibration times, regardless of whether or not the displayed
time actually is the correct time.
• Use the signal strength indicator as a guide for checking signal strength and for
finding the best location for the watch during signal receive operations.
• Following reception of the time calibration signal and calibration of the watch's time
setting, the Settings updated indicator will remain on the display in all modes. The
Settings updated indicator will not be displayed if signal reception was unsuccessful
or after you adjust the current time setting manually.
• The Settings updated indicator is displayed only when the watch is able to receive
both time and date data successfully. It does not appear when only time data is
received.
• The Settings updated indicator indicates that at least one of the auto calibration
signal receive operations was successful. Note, however, that the Settings updated
indicator disappears from the display each day when the first auto receive operation
of the day is performed.
• If the latest reception fails but a previous reception was
Receive failed
successful, an indicator (
• The watch will return to normal timekeeping without
changing the time setting if you press D or if you do not
perform any button operation for about one or two
minutes.
Note
If there was a previously
• To interrupt a receive operation and return to normal
successful reception
timekeeping, press D.
If no reception was
successful
500 kilometers
Fukushima
1,000 kilometers
China Signal
Changchun
Beijing
Shanghai
Hong Kong
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Auto Receive Start Times
3
4
5
6
3:00 am
4:00 am
5:00 am
Midnight*
4:00 am
5:00 am
Midnight*
1:00 am*
4:00 am
5:00 am
Midnight*
1:00 am*
5:00 am
Midnight*
1:00 am*
2:00 am*
5:00 am
Midnight*
1:00 am*
2:00 am*
Midnight*
1:00 am*
2:00 am*
3:00 am*
Midnight*
1:00 am*
2:00 am*
3:00 am*
1:00 am*
2:00 am*
3:00 am*
4:00 am*
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) will be on the display.
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