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.
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Case size (L× W× H)55 × 51.2 × 16.9 mm
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Weight72 g
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Case and bezel materialResin
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BandResin Band
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ConstructionMagnetic ResistantShock Resistant
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Water resistance200-meter water resistance
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Power supply and battery lifeApprox. battery life: 2 years on CR1220
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GlassMineral Glass
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World timeWorld time 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping
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Stopwatch1/1000-second stopwatch Measuring capacity: 99:59'59.999'' Measuring modes: Elapsed time, lap time, split time Others: Speed (0 to 1998 units/hour), Distance input (0.0 to 99.9) Mach indicator (speed exceeding 1225 units/hour)
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TimerCountdown 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
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Alarm/hourly time signal5 daily alarms (with 1 snooze alarm)Hourly time signal
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LightLED light Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
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Light colorLED:Amber
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CalendarFull auto-calendar (to year 2099)
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AccuracyAccuracy: ±15 seconds per month
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Other features12/24-hour formatRegular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (speed) Digital: Hour, minute, second, pm, month, date, day
      
        
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