Casio Men's G-Shock Black Resin Watch GA100-1A1

  • $ 67.50
    Unit price per 
  • Save $ 31.50


For 25 years Casio G-Shock digital watches are the ultimate tough watch. Providing durable, waterproof men’s digital watches for every activity. G-Shock is the ultimate tough watch.

It was born from a developer's dream of "creating a watch that never breaks." Guided by a "Triple 10" development concept, the design teams sought a watch with 10-meter free-fall endurance, 10-bar water resistance and a 10-year battery life. Living up to G-Shock's reputation for big case designs, comes a revolution in case size with the introduction of the X-Large G.

Living up to G-Shock’s reputation for big case designs, comes a revolution in case size with the introduction of the X-Large G. This Ana-Digi, “three-eyed” monster measure in at a whopping 55 x 51.2 x 16.9mm size, with an attention to detail, that is second to none. Large anti-skid buttons provide easy operation, embossed indexes gives a 3-D look and a rivet bezel design adds strength to its overall appearance.


  • 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/Weight: 55.0 x 51.2 x 16.9mm / 70g
  • 1 Year Manufacture Warranty