Natural Resin Replacement Watch Band Strap for Casio Mens G-Shock G -8900/GLS-8900/GR-8900/GW-8900/GD-100/GD-110/GD-120/GA -110/100/120/200/150/GLS-100/GA-300 (Black) | Amazon.com
How To Setting Time a Casio G-Shock GA-300 Digital Watch | SolimBD | Watch Repair Channel - YouTube
Casio G Shock GA-300 Time Setting, Hand Alignment Adjusting and Alarm Setting | SolimBD - YouTube