Needed a new battery for my wrist watch. Went into two different jewelry stores ( Walmart no longer does it ) . One said $13, the other $15 to install a new battery. Went home, screwed the back off my watch. Got the battery #, 377.; Checked with e-bay. Two pack of batteries shipped, $2.14. On their way here. Of course I will be without my watch for a few days. No big deal. Sorry the picture is not any clearer. Used my wife's big magnifying glass to read it. #377. Very common battery for watches.