Colorful Resin Sport Strap for Casio G SHOCK GA 100 GA 110 GA 120 GD 110 Transparent Men Replacement Watch Band Protective Case|Watchbands| - AliExpress
Casio GA-100-1 G-Shock Analog Digital Black Men's Large Watch 100 Original for sale online | eBay
Casio G-Shock 48mm ref. GA-100-1A2ER Black & Blue for $80 for sale from a Private Seller on Chrono24
G-Shock GA-100 / 5081 / Power and Strength in 35mm Case
How to set up Casio G-Shock GA-100 (user manual, user guide)