Casio G-Shock Men's 54mm Gravitymaster GR-B100-1A2 Resin Watch - Black/Blue

Constantly setting new standards for timekeeping, G-Shock is synonymous with the best of both analog and digital timekeeping in a lightweight, styling package suited for the outdoor explorer or weekday warrior. The GR-B100-1A2 is no exception, offering shock and water resistance, stopwatch, countdown timer and multi-alarm functionality. It even links to your phone through Bluetooth connectivity so you never miss a beat.


  • Casio G-Shock watches
  • For men
  • Series: Gravitymaster
  • Model no.: GR-B100-1A2
  • Movement: Japan
  • Dial colour: Grey
  • Band colour: Black/Blue
  • Case colour: Black/Blue
  • Case material: Resin/stainless steel
  • Band material: Resin
  • Band measurement (approx. mm):
    • Width: 20
    • Length (including the face): 270
  • Case diameter (approx. mm, includes casing): 54
  • Case thickness (approx. mm): 17
  • Clasp type: Buckle
  • Water resistance: 200m / 20 BAR
  • Alarm: 5 multi-function alarms (with countdown, daily, 1 time, schedule)
  • World time: 39 time zones (39 cities + coordinated universal time)
  • LED light: Double (face/backlight)
  • Stopwatch & accuracy: 1/1000-second
  • Calendar: Full auto-calendar (to year 2099)
  • Solar powered
  • Mobile link through Bluetooth
  • Countdown timer
  • Hourly time signal
  • Hand shift feature
  • Battery level indicator
  • 12/24-hour format
  • Button operation tone on/off
  • Power Saving mode
  • Regular timekeeping
  • Battery type: Rechargeable 
  • Battery life:
    • 6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
    • 19 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
  • Original box: Yes 
A Bit About The Brand / More Info

Casio has been crafting timeless designs for decades. Renowned for their combination of flair and versatility, Casio wrist watches are perfect for anyone who requires unique functionality to go.

Casio G-Shock Men's 54mm Gravitymaster GR-B100-1A2 Resin Watch - Black/Blue


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