The tide function bug of GBX-100 that occurred on October 1, 2020 has been fixed in the latest version (Ver.1.10.0) of the G-SHOCK MOVE app.
Please update to the latest version (Ver.1.10.0).
We sincerely apologize for any inconvenience this may cause.

Status:

When a preset area other than Japan or Europe (excluding some areas) was selected with the tide function of the watch or the app, the time of high and low tide and tide level will be incorrectly shifting.

Cause of failure:

There was a bug in the tide algorithm other than Japan and Europe (excluding some areas).