Casio G-Shock GA-800 manual 5535 to calibration if not sync - YouTube
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Casio G-Shock GA-800 manual 5535 to set time - YouTube
Casio G-Shock GA-800 manual 5535 to calibration if not sync - YouTube
My watch has been doing this for a while. I have had the right time and date set, but then for no reason it just switches to this screen and the analog