G-shock Battery Change and AC Reset GA1100 GA1000 - Aviator Gshock Watch - YouTube
OFFICIAL WARRANTY) Casio G-Shock GA-1000-8A Gravitymaster Twin Sensor Aviation Analog Digital Grey Resin
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.
Genuine Casio Watch Strap Band GA-1000-1B GA1000-2B GA-1000-9G 10435441 - Black | eBay