Make sure to keep the watch sufficiently charged
The watch operates while charging electricity by converting light received on the dial to electrical energy. It cannot properly operate unless the remaining energy is sufficient.
Place or store in a location receiving light, etc., to sufficiently charge electricity.
The amount of energy stored in the watch can be checked by the movement of the seconds hand.
Charging the solar battery
To receive radio signals
The watch automatically receives radio signals to adjust the time every day.
Automatic radio signal reception is carried out before 2:00 AM and 4:00 AM.
During this period of time, place the watch in a location that easily receives radio signals without wearing it and do not move it.