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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.
While battery power is low
ー
While an elapsed time operation is in
ー
progress (Auto Receive only disabled.)
At Power Saving Level 2
ー
While the crown is pulled out
ー
While the Home City setting is a time zone
ー
where time signal reception is not
possible
While the watch is outside the time signal
ー
reception range
While the watch is paired with a phone
ー
To perform a manual time calibration signal
●
receive operation, make sure the watch is
not paired with a phone. If it is, delete the
watch's pairing information before
performing the manual receive operation.
Unpairing
l
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.
When the summer time start date and
ー
time, end date and time, or other rules are
changed by authorities
If your watch is connected with a phone,
●
settings must be configured so CASIO
WATCHES can acquire location
information. Even if you are in an area that
is within the reception range of a time signal,
reception will not be performed if settings
are configured in a way that makes signal
reception impossible.
As of January 2021, 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 5665
Using Watch Operations to
Adjust the Time Setting
If your watch cannot connect with a phone for
some reason, you can use watch operations
to adjust date and time settings.
Setting a Home City
●
Use the procedure in this section to select a
city (time zone) to use as your Home City.
Important!
If you do not specify the city (time zone)
●
where you are using the watch, the
current time setting will not be correct
after it is adjusted based on a time
calibration signal.
1.
Pull out the crown to the second click.
The second hand will move to the city
code of the currently selected Home City.
2.
Rotate the crown to change the Home
City.
You can also select a time zone whose
●
name is not indicated on the face of the
watch.
For details about time zones, refer to the
●
information below.
City Table
l
3.
Push the crown back in to its normal
position.
30
Crown
Home City (time zone)
Adjusting the Time and Day Setting
●
1.
Pull out the crown to the second click.
The second hand will move to the city
code of the currently selected Home City.
30
Home City (time zone)
2.
Hold down (B) for at least three seconds.
This causes the second hand to move to
12 o'clock, and enables the hour and
minute setting operation.
3.
Rotate the crown to change the hour and
minute settings.
4.
Press (B).
This enables the year ten's digit setting
operation.
5.
Rotate the crown to move the second
hand to the desired setting for the year
ten's digit.
Year (10's digit)
00
10
90
80
70
50
60
6.
Press (B).
This enables the year one's digit setting
operation.
7.
Rotate the crown to move the second
hand to the desired setting for the year
one's digit.
Year (one's digit)
0
1
9
8
7
5
6
Crown
20
30
40
2
3
4
18
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