Casio C-80 First Calculator Casio Watch Vintage Rare 1980s, Men's Fashion, Watches & Accessories, Watches on Carousell
watch.at.me on Instagram: "® World's first Casio calculator watch ‼️ . Rare Collectible Item Vintage Casio C-80, originally released in 1980 🔥 Features : • day, date, month • AM-PM, 12/24 hour •
Casio+C-80+Wrist+Watch+for+Men for sale online | eBay
Casio C-80 Calculator Vintage Wrisrwatch 1980 very good condition Free Shipping | eBay
So I have this C80… but on fresh batteries, I can't seem to get any button to work, except the light. All others are unresponsive. I tried poking directly at the module