Initial Time Adjustment
When using the watch for the first time, we recommend connection of the watch to a smartphone for current time setting is recommended.
Connecting the Watch with a Smartphone to Set the Watch’s Current Time
Once the watch is paired with a smartphone, its current time setting automatically synchronizes with that of the watch. Perform the steps below to pair the watch with a phone.
Install the app on your phone.
Configure Bluetooth settings.
Pair the watch with a phone.
Install the app on your phone.
To use the watch with a phone, first tap one of the links below and install the “CASIO WATCHES” app on the phone.
Configure Bluetooth settings.
Enable the phone’s Bluetooth.
Note
For details about setting procedures, see your phone documentation.
Pair the watch with a phone.
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Move the phone to be paired with close to (within one meter of) the watch.
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Tap the “CASIO WATCHES” icon. -
Tap the
of the “My Watch” tab. -
Perform the operation shown on the phone screen to register the watch to the CASIO WATCHES phone app. -
Hold down (D) for at least two seconds.
[OK] is shown on the display while there is a connection between the watch and phone.
At this time the time settings of your phone and watch are synced with each other.
If pairing fails for some reason, [ERR] appears on the display momentarily and then the watch returns to the Timekeeping Mode. Perform the pairing procedure again from the beginning.

This completes the pairing operation.
Once paired, the smartphone and watch automatically connect to synchronize the watch’s time setting with that of the smartphone.
Note
The first time you start up the CASIO WATCHES phone app, a message will appear on your phone asking if you want to enable location information acquisition. Configure settings to allow background use of location information.
Other Ways to Adjust the Current Time Setting
In addition to connecting with a smartphone, you can also use the procedures described below to adjust the watch’s current time setting.