New Replacement Watch Battery for Casio G-SHOCK GA-1000/FC, GA-300/A/MMM GA-303B | eBay
How To Change Battery with AC Reset a CASIO G-Shock GA-100CF Watch | SolimBD | DIY | How To Change Battery with AC Reset a CASIO G-Shock GA-100CF Watch | SolimBD
How to battery change on a Casio G Shock GA-1000 - YouTube
Genuine Casio Screw Set for fitting GA-1000 GA1000 Casio Watch Strap Band -Qty 4 | eBay