wrist watch repair

[me88]

does every regular wrist watch use a 3v "coin" battery? I want to make sure before I go out and buy a watch repair tool kit and do it myself

 

[USAFRet]

does every regular wrist watch use a 3v "coin" battery? I want to make sure before I go out and buy a watch repair tool kit and do it myself

No.
Different watches take different sizes.

If you look up the make/model, you can almost certainly discover the relevant battery.

 

[Alabalcho]

If you go to "Battiees" isle on any Walmart, you'll see a dozen of "Watch batteries", each one of different diameter / thickness.