Hey there!
I'm new too, just only joined up recently. Found this site when I went to RadioShack to replace the batteries in a watch my Father gave me. It is a vintage CompuChron LED watch (from about 1973-or-75).
The sales associate just wanted to double check the battery type as to not ruin the watch as he saw it was quite old and in great shape. (My Father really does not wear watches of any kind, so this one, was not worn much). So I went back here once I got home and joined up.
Great to meet you! :)
Josh