It's a common problem, now that the earlier Tough Solar watches are getting on in years. Plus, there was apparently a bad production run by the battery manufacturer (Matsushita/Panasonic), so there's a certain subpopulation of G-Shocks that are seeing premature failure.
Replacement is easy. You'll need a jeweler's screwdriver set, ideally some plastic tweezers (though a toothpick will do), some metal tweezers for one of the final steps (but not for handling the battery), and if you're smart some latex gloves to keep everything pristine. Get a little tube of silicone grease, too (and ONLY silicone). Careful with it, though-- it's impossible to wash off of clothing, etc.
It's all proceed-at-your-own-risk, of course, but good instructions are posted at
http://forums.watchuseek.com/showthread.php?t=41076Mind the little springs, and note which one came from where.
Altogether, it's an easy job. Good luck!
×