Auto Time Calibration Signal
Receive
An automatic time calibration signal receive
operation is performed and the time and day
settings are adjusted between midnight and
5:00 a.m. Once a signal receive operation is
successful, no more auto receive operations
are performed that day.
The receive operation is performed only while
the
watch is in the Timekeeping Mode (normal
timekeeping).
●
Normally the mode hand points to the
current day of the week.
l Navigating Between Modes
Place the watch near a window or some other
location appropriate for signal reception.
●
The second hand points to “RC” while time
calibration reception in progress.
●
When the receive operation is successful,
the time and day settings will be adjusted
automatically.
Note
●
Reception takes anywhere from
about two minutes to about 10
minutes. It can take as long as 20
minutes.
Checking the Receive
Operation Result
You can use the procedure below to check the
result of the last GPS or time calibration signal
receive operation.
Getting ready
Enter the Timekeeping Mode.
l Navigating Between Modes
1.
Press (B).
The second hand will move and indicate
the receive operation result.
“Y (YES)”: Receive successful
“N (NO)”: Receive failed
2.
Press
(B) or do not perform any operation
for one or two seconds to return to the
current time.
Note
●
Even if there was a successful
receive operation, the second hand
will point to
“N(NO)” if you adjusted
the time setting manually.
Signal Reception
Precautions
●
GPS signal and time calibration signal
reception will not be possible under any of
the watch conditions described below.
ー
While battery power is low
ー
While the watch is in the Airplane Mode
or Stopwatch Mode
ー
When power saving is at Level 2 (GPS
signal reception also is not possible at
Level 1.)
ー
While the crown is pulled out
ー
While the stopwatch is measuring
elapsed time
ー
While the temperature of the watch is less
than approximately -10°C (14°F) or
greater than approximately 60°C (140°F)
●
Note that an internal decoding process the
watch
performs after it receives a signal may
cause the time setting to be slightly off (by
less than one second).
●
If the receive operation is successful, the
time and day settings will be adjusted
automatically in accordance with the Home
City (time zone) and summer time settings.
Summer
time will not be applied correctly in
the cases described below.
ー
When the summer time start date and
time, end date and time, or other rules are
changed by authorities
ー
When position information cannot be
acquired correctly
ー
When position information can be
acquired, but it is wrong because the
watch is located near a time zone
boundary, etc.
●
As of December 2013, China does not
observe summer time. If China starts to
observe
summer time in the future, the time
displayed by the watch for China may not be
correct.
●
When the watch is unable to adjust its time
in accordance with a calibration signal for
some reason, average timekeeping
accuracy is within ±15 seconds per month.
Using the Watch on an
Aircraft
Enter the Airplane Mode when in an aircraft or
anywhere else where GPS or time calibration
signal reception is restricted.
Entering the Watch Airplane
Mode
Holding down (C) for about four seconds to
enter the watch’s Airplane Mode. The mode
hand will move to the Airplane mark.
●
Each time (C) is held down for about four
seconds, the watch enters or exits the
Airplane Mode.
World Time
World Time lets you look up the current time
in any one of 27 cities and 40 time zones
around the globe.
Getting ready
Enter the Timekeeping Mode.
l Navigating Between Modes
Checking the Time in Another
Zone
1.
Pull out the crown to the first click.
The second hand will move to the time
zone of the currently selected World Time
City.
30
Time zone
Crown
Small
minute hand
Small hour
hand
Operation Guide 5412
6
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