888-730-2221 or 650-347-2221
G-Shock Master of G Gravitymaster GRB200-1A9

G-Shock Master of G Gravitymaster

SKU: GRB200-1A9 

  • $350.00
or call: +1 (650) 347-2221
  • G-Shock Authorized Dealer
  • Topper Guarantee
  • Extended Warranty more info

G-Shock's signature toughness in the rugged Master of G collection takes to the skies with an all-new Quad Sensor-equipped Gravitymaster pilot's watch. 

The Quad Sensor Gravitymaster is built around G-Shock's high-strength, highly weather-resistant Carbon Core Guard Structure, which protects the module with a resin case reinforced with carbon fibers. This, combined with world-renowned shock resistance, creates a structure that is also highly vibration resistant. The bezel is made up of three layers of resin with carbon fiber inserts. The top layer is semi-transparent to reveal the carbon material inside. The three buttons on the right side of the watch are arranged in a way that makes them resemble a fighter jet control stick, while also contributing to ease of operation.

The Gravitymaster's Quad Sensor system uses compact sensors that make it possible to pack compass, altitude/barometer, and temperature measurement capabilities, along with an accelerometer that keeps track of your step count, into a compact configuration. This makes it easy to keep tabs on the natural environment around you and to maintain logs of your activities for comprehensive flight mission support. A special G-Shock phone app enables the wearer to easily configure watch settings, and also provides a unique Mission Function. 


  • Case size: 63 x 54.1 x 18.3mm
  • Total weight: 80 grams
  • Case: Carbon Core Guard Structure with resin strap
  • Shock Resistant
  • Water resistance: 200 meters
  • Crystal: mineral glass
  • Quad Sensor module: digital compass, altitude/barometer, thermometer, accelerometer
  • Additional functions: alarm, worldtime, chronograph, countdown timer, full calendar through 2099
  • Neo-Brite luminous handset, LED backlight
  • Bluetooth smartphone link, G-Shock mobile app compatible
  • Mission Log function records altitude points from the watch and GPS points from the phone
  • Approx. battery life: 2 years on CR2025

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