Amazon.com: Casio General Men's Watches Data Bank CA-506-1UW - WW : Casio: Clothing, Shoes & Jewelry
Saturday watch here, Casio made some great lines of timepieces, but the calculator watches are probably the most recognized, this one is the Casio CFX-400! Capable of normal timekeeping, it was a
1983 Casio CFX-20 Scientific Calculator Watch for Sale in Portland, OR - OfferUp
Casio CFX-200 Scientific Calculator Vintage Men's Watch For Parts | eBay