What type of battery is used? The batteries for our Classic, Chronos, Voyagers, Modern Sports, Signature, Gala and MOD watches are SONY SR626SW. The 40 series, Revolver, Boulevard, Avenue, and Nova watch batteries are SONY SR621SW.
Can I replace watch battery myself?
If you don't want to change the watch battery by yourself, don't worry. ... If the new battery dies before that date, you can bring it back to them and they will replace it at no cost. Replacing the battery can be difficult with some watches.Sep 3, 2020