The easy answer is just replace the battery, depending on the series that may not be possible as the first versions of the watches battery are not easy to find.
Can you tell us the series, look at the back bezel in fine engraving you should be able to read it.
The easy answer is just replace the battery, depending on the series that may not be possible as the first versions of the watches battery are not easy to find.
Can you tell us the series, look at the back bezel in fine engraving you should be able to read it.
DanJ さんによる