Help identify my moms casio
This was in my late mothers box of jewlery, and I don’t know much about it. It must be from before 2005 at least, but I’m guesing maybe 80’s. She wasn’t a watch person and if she bought it herself, she wouldn’t have spent a lot of money at the time, but it might have been a gift.
It’s obviously in bad shape, but I would just like to know more about it just because it was hers. If it’s real, I might want to have it fixed (if not too expensive).
Edit: The watch is very small, to the point that my thumb can almost cover the entire watch face. It does not turn on, but that was to be expected.
Edit 2: The battery is a 391, and it will be a bit of a wait to find one. Any tips on how to clean the watch safely and find a replacement strap are very appreciated!