Casio A168WA Review: Is It the Best Affordable Digital Watch?
Casio SGW100 -1V Twin Sensor Digital Watch Battery Replacement And Cleaning - YouTube
Casio Retro A168 — EL Backlight & 7 Years Battery
My brother's watch lasted a decade on the original battery, and these batteries are tiny, so I'm just wondering.... how long with a big enough battery could one last? : r/casio
Casio Digital A168 WE Battery Replace Tutorial | How to replace the battery on a Casio watch - YouTube