The Casio Game-10 watch, released in 1980 (only 8 years after the first electronic digital watch was released!), let you play a three-line version of Space Invaders : r/interestingasfuck
Casio / Casio game-10 at sahibinden.com - 969519824
Casio - GM-10 - - GAME 10 - Casio GM10 - Casio.ledudu.com - Casio pocket computer, calculator, game and watch library. - RETRO CALCULATOR FX PB SF LC SL HP FA
CASIO - GM-10 - Game - Vintage Digital Watch - Digital-Watch.com
VERY RARE casio game 10 gm 10 module 165 game and watch nice - $250.00 | PicClick
Casio Gm-10 Game 10 | #1048886274
Nerd Watch | Vintage Electronics Have Soul | Casio, Casio watch, Game & watch
casio game watch | eBay
1003 Games that made me what I am | by 64 bit and less | Game of Life | Medium