Casio F-10/11/12 and a NOS F-23W! I've acquired these on my journey to collect retro/vintage Casio's. They are slowly creeping up in cost and more so in unused condition. : r/casio
Vintage 1980 Rare Digital Watch Casio F-7 module 58 Work Fine | WatchCharts
Ten reasons we love our Casio F-91W digital watch - Us Vs Th3m
Casio F-12 Gold Edition again NOS RETRO 80's : r/casio
Vintage Casio F-7 Watch Mens Lithium Module 58 - Etsy