I just recently bought a Gshock G2300B-1V watch on ebay.
How can i test that my watch is really solar power or not?
Is there a good way to test it instead of leaving my watch in sun light or putting it in a dark room for long time?

Best answer:

Answer by j d
Short of opening the watch the only way is to leave it in the dark.

If it’s truly a Solar watch, it will “go dead” after a period of time. How long that takes depends on the energy storage capacity of the watch (which should be in you instruction book).

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