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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.
Getting Ready
Enter the Timekeeping Mode.
l
Navigating Between Modes
30
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.
●
If the watch connects with a phone and
adjusts its time setting, the watch will
not perform auto receive of a time
calibration signal for the rest of that day
or the next day.
Manual Time Calibration
Signal Receive
Getting Ready
Enter the Timekeeping Mode.
l
Navigating Between Modes
1. Hold down (B) for about 1.5 seconds until
the second hand points to [RC].
This indicates that time calibration signal
reception has started.
30
2. Place the watch near a window or some
other location appropriate for time signal
reception.
When a time calibration signal is received,
the watch’s time and day settings will be
adjusted accordingly.
Note
●
Reception 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.
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
While the watch is in the Stopwatch Mode,
Timer Mode, or Alarm Mode
ー
At Power Saving Level 2
ー
While the crown is pulled out
ー
While a timer countdown operation is in
progress
●
As of July 2017, 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.
Using Mobile Link with
a Mobile Phone
While there is a Bluetooth connection
between the watch and phone, the watch time
setting is adjusted automatically. You can also
change the watch’s other settings.
Note
●
This function is available only while
CASIO WATCHES is running on the
phone.
●
This section describes watch and
phone operations.
X
: Watch operation
Y
: Phone operation
Getting Ready
A
Install the required app on your
phone.
In Google Play or the App Store, search for the
CASIO “CASIO WATCHES” app and install it
on your phone.
B
Configure Bluetooth settings.
Enable the phone’s Bluetooth.
Note
●
For details about setting procedures,
see your phone documentation.
C
Pair the watch with a phone.
Before you can use the watch in combination
with a phone, you first need to pair them.
1. Move the phone to be paired with close to
(within one meter of) the watch.
2.
Y
Tap the “CASIO WATCHES” icon.
●
Tap on the “My Watch” tab. Next,
select the applicable product name.
3.
X
Hold down (C) for about 3.5 seconds
until the second hand points to [C].
Operation Guide 5526
7
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