2 year vs 10 year battery | WatchUSeek Watch Forums
New G-Shock DW-5600 and DW-6900 have new modules with LED light and longer battery life
Casio DW-5600C | Bitácora de Javier Gutiérrez Chamorro (Guti)
Casio G-Shock DW-5600 Review | Hodinky-365.com
Casio G-Shock DW-6901 Battery / CR2016
CASIO G-Shock 901 DW-5600 Quartz Digital Men's Watch New Battery | eBay
Replacement Battery for Casio G-Shock DW-5600 / 6900 / 6901 / 9502 Model Watches | eBay
Old DW-5600 won't beep after battery change | WatchUSeek Watch Forums
Casio watch. Had it for ~20yrs. It died today but I just replaced the battery and it's back again! I had only changed batteries twice: 10 yrs ago and today. Truly BIFL
G-Shock DW5600 battery life « My G-Shock Feedback Forum