G-Shock G-SQUAD DW-H5600 fitness watch with heart rate monitor is based on the original G-Shock design
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
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2 year vs 10 year battery | WatchUSeek Watch Forums
G-Shock DW5600 battery life « My G-Shock Feedback Forum
New G-Shock DW-5600 and DW-6900 have new modules with LED light and longer battery life
2 year vs 10 year battery | WatchUSeek Watch Forums