My few months old Casio Oceanus Manta has been running 4 minutes early since a few weeks.
I charged it in the Sun. Kept it by the window at night for it to acquire the time radio signal but no difference.
Should I manually adjust time ( then whats the point of it being radio controlled ?) . Also the way to set the time manually seems a little tricky .
Or should I take the second hand to the REC sign to see if it will acquire signal in a few hours?