G-Shock's most popular large case analog/digital series introduces a matte black watch, the GA100MB-1A. The face and band are matte black with green accents which highlight the toughness and coolness of G-Shock.

• Shock Resistant
• Magnetic Resistant
• 200 Meter Water Resistant
• Auto LED Light with Afterglow
• World Time 
• 29 times zones (48 cities + UTC), daylight saving on/off, home city/world time swapping
• 4 Daily Alarms and 1 Snooze Alarm
• Hourly Time Signal
• 1/1000 Second Stopwatch 
• Measuring capacity: 99:59'59.999" 
• Measuring modes: Elapsed time, lap time, split time 
• Others: Speed (0-1998 units/hour), Selection distance input (0.0-99.9)
• Countdown Timer 
• Measuring unit: 1 second 
• Countdown range: 24 hours 
• Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) 
• Other: Auto-repeat
• Full Auto-Calendar (pre-programmed until the year 2099)
• 12/24 Hour Formats
• Accuracy: +/- 15 seconds per month
• Battery: CR1220
• Approx. battery life: 2 years
• Module 5081

Size of case/total weight

GA100LG 55.0 x 51.2 x 16.9mm / 70g

GA100SD 55.0 x 51.2 x 16.9mm / 70g

GA100 55.0 x 51.2 x 16.9mm / 70g

GA100A 55.0 x 51.2 x 16.9mm / 70g

GA100B 55.0 x 51.2 x 16.9mm / 70g

GA100MC 55.0 x 51.2 x 16.9mm / 70g

GA100CF 55.0 x 51.2 x 16.9mm / 70g