Today I Learned...The Casio AT-552 Janus Was The First Generation Of Touchscreen Watch
Before Smartwatches, There was the Gesture-Controlled, Touchscreen Casio AT- 552 Janus Calculator Watch from 1984 - TechEBlog
VINTAGE CASIO JANUS TOUCH CALCULATOR WATCH AT-552 MADE IN JAPAN | Inox Wind
Casio Janus AT-552] Finally got the one watch I remember wanting most as a kid looking through old Casio adverts. Calculator watch you enter digits via drawing them on the screen, super