How much would it cost to replace the battery is 3 fossil watches?

Hi Jon. It would be $11 to change a watch battery. We repair any kind of watch and can change the battery in any kind of watch as well. The batteries come with a 2 year warranty. We normally can do it while you wait with the exception of Wed Apr 17-Sat Apr 20 on account of the crowds during our Easter Egg hunt. Those days, you would need to leave the watches. Please let us know if you have further questions.

Depends if you bought them there.