How to Replace a G-Shock GA201-1A Battery - iFixit Repair Guide
OFFICIAL WARRANTY) Casio G-Shock GA-1000-8A Gravitymaster Twin Sensor Aviation Analog Digital Grey Resin
CASIO Original G-Shock Band GA-1000-4A GA-1000-4 Orange Strap GA1000 840596099596 | eBay
GA-1000-4B | CASIO
Watch Battery for G-Shock GA-1000-8A
GA-1000 short battery life. I replace the batteries in it less than a year ago and the battery is already dead. The batteries that came in it lasted just over a year.