Hands-On With Some Casio Databank Calculator Watches Still Sold Today | aBlogtoWatch
Calculator watch - Wikipedia
DBC-1500] A 90s calculator watch. Never used. Seems to have a metal case. Heavy thick metal band. None of the buttons work. Will crack open again to see what I did wrong
Casio CA506-1 8 Digit Calculator Watch Stopwatch Stainless Steel Band Brand New | eBay