How do you change the battery in my Coleman wrist watch?

To change the battery in your Coleman wrist watch, first, locate the small notch on the back of the watch case. Use a case opener tool or a small flathead screwdriver to gently pry open the back cover. Once open, remove the old battery by noting its orientation, then replace it with a new battery of the same type. Finally, securely close the back cover and ensure everything is sealed properly.