When I worked at walmart, they surprisingly had a large selection of the watch type batteries. Not sure where in the city you live, but in North Hill Centre there's a watch stop right across from the Intersport that I'm sure would have it.
If you buy these batteries frequently or use a devise that goes through these kind of batteries fast. Buy them from the source. For an extra 1.50 you get two free batteries over a 3 year period.
