CASIO G-Shock GA-1000 Mens Dual Sensor Analog Digital Quartz Watch~New Battery | eBay
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.
Replacement - Penggantian Battery Casio G-Shock GA 1000 - YouTube
New Replacement Watch Battery for Casio G-SHOCK GA-1000/FC, GA-300/A/MMM GA-303B | eBay
Casio G-Shock GA-1000-4B GRAVITYMASTER Series Digital Compass Red Resin Watch | eBay
Casio G-Shock (GA-1000) - Battery Replacement And How To Sync Analog And Digital Time Using H.SET. - YouTube