
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.
“YES”: Receive successful
“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 “NO” if you
adjusted the time setting
manually.
●If you do not perform any watch
operation for about one or two
seconds after position
information is acquired, the
watch will display the acquired
Home City (time zone) and the
rough latitude of your current
position.
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, Stopwatch Mode, Timer
Mode, or Alarm 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 a stopwatch elapsed time
measurement and/or timer
countdown operation is in progress
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 the (C) button 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 hands of the watch will move to
the current time in the currently
selected World Time City.
30
Time zone
Small hour hand
Small minute hand
Crown
Operation Guide 5411
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