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Manual Time Calibration Signal
Receive
1. Place the watch near a window or some
other location appropriate for time signal
reception.
2. Enter the Receive Mode.
l
Navigating Between Modes
3. Hold down (A) for at least two seconds.
Release the button when [ ] starts to
flash.
This indicates that the receive operation
has started. After the receive operation is
complete, the watch’s time and day
settings will be adjusted accordingly.
Receive level indicator
●
The level indicator shows the signal
level ([L1], [L2], [L3]) while a receive
operation is in progress.
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Receive Level Indicator
Note
●
The receive operation takes anywhere
from about two minutes to about 10
minutes. It can take as long as 20
minutes.
●
Time calibration signal reception is
better at night than during the day.
●
A time calibration signal cannot be
received while the city selected as your
Home City is one that does not support
signal reception.
Receive Level Indicator
While a receive operation is in progress, its
current status is indicated on the display as
shown below. Use the level indicator to find a
location where signal reception is stable.
Receive level indicator
Stable
Unstable
Note
●
It takes about 10 seconds for time
signal reception conditions to stabilize.
●
Reception conditions are affected by
weather, the time of day, the
surrounding environment, etc.
Checking the Last Time Adjustment
Result
1. Enter the Receive Mode.
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Navigating Between Modes
This displays the date and time of the last
successful receive operation.
Last receive date
Last receive time
Signal Reception Precautions
●
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.
●
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).
●
Time calibration signal reception is not
possible under the conditions described
below.
ー
While battery power is low
ー
In any mode besides the Timekeeping
Mode or World Time Mode
ー
When the watch is at Level 2 power
saving
ー
While a compass reading, barometric
pressure/ temperature measurement, or
altitude measurement operation is in
progress
ー
While the barometric pressure change
indication is enabled
ー
While a climb record data measurement
operation is in progress
ー
While a timer countdown operation is in
progress
ー
While the Home City area setting is one
where time signal reception is not
possible
ー
While the watch is outside the time signal
reception range
●
When the receive operation is successful,
the time and/or day settings will be adjusted
automatically. Summer time will not be
applied correctly in the case described
below.
ー
When the summer time start date and
time, end date and time, or other rules are
changed by authorities
●
As of July 2022, 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.
Watch Operation Guide 3553
12
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