How To: Change the time and date on a G-shock (5081) watch - YouTube
Casio G Shock watch repair GA - 100 5081 in for battery and reseal from Hendon, London. | Watches Fixed | Watch Repairs | Latest Watch News | Watch Hub
How to set Time and Calendar Casio G Shock 5081 (Analog and Digital) - YouTube
Casio G-Shock 5081 GA-100 Analog Digital Black Quartz Men's Wrist Watch 20 BAR 5059027959957 | eBay
Casio G-Shock Watch Mens Model 5081 GA-100 With New Battery | eBay
G-Shock GA-100 / 5081 / Power and Strength in 35mm Case