Brian Roemmele on Twitter: "It was 1982 and the Casio's AT-550 was the first consumer hand recognition device and first consumer touch screen device, built into a calculator watch with an analog
Casio DB-1000 Touch screen data watch (1984) | Wolf Review
1914 CASIO Super Light Illuminator Watch - Official Sports International
RARE VINTAGE DIGITAL WATCH 1984 CASIO WS-77 RETRO OLD SCHOOL NEW BATTERY LCD | eBay
Very Rare 1984 CASIO W-10 (415) Japan M 50M WR 34mm watch - New Band & Battery | eBay