well, i had a red dot optic i used to use them for, also, my dog's electronic training collar uses them. I would imagine there are watches that use them as well.
Yup. Most common use for them.2032 are used in every GM keyless entry remote since at least 1999.
no, i suggest target, or walgreens. we charge out the butt for them, about 10-15 dollars each.get them at a car dealer. They will be cheaper there then a watch store since they go through more of them.