Casio G-Shock Classic Dual Display Black Plastic Strap Watch GA-100-1A4ER

Built for bold, high-impact styling, the Casio G-Shock Classic Dual Display Watch GA-100-1A4ER brings the Oversize collection’s large dial and case to the wrist. Dial rings and raised hour markers add a strong three-dimensional look, while the oversized buttons have a textured anti-slip surface for confident operation. A dual display layout supports everyday timekeeping alongside a wide range of functions, from world time to timing modes.

Engineered for demanding use, this G-Shock runs on a quartz movement with accuracy of +/- 15 seconds per month. It delivers shock resistance through a patented hollow core guard structure, with added vibration resistance and magnetic resistance. Auto Light illuminates the dial when the wrist is tilted, with selectable LED illumination duration of 1.5 seconds or 3 seconds, while Neobrite provides luminous hands for visibility in the dark. Water resistance is rated to 200 metres, with low temperature resistance down to -10°C/14°F.

Key features

• Oversize G-Shock watch with dual display
• Quartz movement with +/- 15 seconds per month accuracy
• Shock resistant with patented hollow core guard structure
• Magnetic resistance with shielded case mounting
• Vibration resistant for heavy duty operations
• Auto Light with LED illumination duration of 1.5 seconds or 3 seconds
• Neobrite luminous coating on the hands
• World time, stopwatch, countdown timer, alarm and average speed display
• Automatic calendar with date, day and month
• Water resistance: 200 metres

Dimensions

• Case width: 51.2mm
• Case depth: 16.9mm
• Total weight: 70g

Please note: Colours may appear slightly different in person than on your screen.