Signup for our Newsletter for a 10% off select items on your first order
A seriously tough watch
G-Shock
ON SALE
GGB100 - Mudmaster
Case Color

Email Me When Available
Item no longer available
Add To Cart
$304.00
Finish selections for price & availability
Free shipping over $100 USD to the US, $150 CAD to Canada, $600 USD to the rest of the world
G-Shock
GGB100 - Mudmaster
A seriously tough watch
Case Color

Email Me When Available
Item no longer available
Add To Cart
$304.00
Finish selections for price & availability
Free shipping over $100 USD to the US, $150 CAD to Canada, $600 USD to the rest of the world

G-SHOCK’s “Master of G” series are some of the hardest-wearing, most feature-packed watches that the brand has to offer. The Mudmaster is designed and engineered to withstand anything that the roughest of wilderness situations can throw at it. Composed of high-rigidity carbon material, the Mudmaster takes “shock resistant” to the next level. In the rare event that a standard G-SHOCK isn’t enough, the carbon and metal Mudmaster is surely ready for action. 

Measuring in at a bold 53.1mm wide by 55.4mm lug-to-lug with a thickness of 19.3mm, the Mudmaster makes quite the statement. It’s not just large for the sake of being large, as the case houses the G-SHOCK “Quad Sensor” - an array of tools including a thermometer, altimeter/barometer, digital compass, and step counter. Metal button pipes for each of the six buttons make for a tighter seal to keep out mud and debris, while a dual-layer caseback further ensures protection from the elements. 

The Mudmaster runs on the 5594 module -- a Bluetooth-connected analog/digital timekeeping device that’s programmable via the G-SHOCK Connected app. The module has a unique “Mission Log” function that combines information from the watch and the GPS in your smartphone to provide a readout of your latest adventure. Additional features like a calorie calculator, automatic time adjustment, phone finder, and world time for over 300 cities make this function-packed watch even more of a powerhouse. 

G-SHOCK Watches ship to the USA only.

  • Case: Carbon Fiber and Metal
  • Dial: Ana-Digi
  • Module: 55.94
  • Features: Stopwatch, Countdown Timer, Alarms, Full-Auto Calendar (to 2099)
  • Lens: Mineral
  • Strap: Resin
  • Water Res.: 200 Meters
  • Diameter: 55.4 x 53.1mm
  • Thickness: 19.3mm
  • Ref Number: GGB100Y-1A

G-SHOCK Watches ship to the USA only.


  • Case: Carbon Fiber and Metal
  • Dial: Ana-Digi
  • Module: 5594
  • Features: World Time, Stopwatch, Countdown Timer, Full Auto Calendar (to 2099)
  • Quad Sensor: Thermometer,Altimeter,Barometer,Digital Compass, Step Counter
  • Lens: Mineral
  • Strap: Resin
  • Water Res.: 200 Meters
  • Dimension: 55.4mm x 53.1mm
  • Thickness: 19.3mm
  • Weight: 92g
  • Ref Number: GGB100-8A
  • Warranty: One Year Limited

G-SHOCK Watches ship to the USA only.

  • Case: Resin
  • Dial: Ana-Digi
  • Module: 5594
  • Features: 1/100 sec Stopwatch, Countdown Timer, Multi-Function Alarm, Full-Auto Calendar (to 2099)
  • Quad Sensor: Thermometer, Altimeter/Barometer, Digital Compass, Step Counter
  • Lens: Mineral
  • Strap: Resin
  • Water Res.: 200M
  • Dimensions: 55.4 x 53.1mm
  • Thickness: 19.3mm
  • Weight: 92g
  • SKU: GGB100-1A
  • Warranty: One Year Limited

G-SHOCK Watches ship to the USA only.

  • Case: Resin
  • Dial: Solar Digital
  • Module: 5594
  • Features: 1/100 sec Stopwatch, Countdown Timer, Multi-Function Alarm, Full-Auto Calendar (to 2099)
  • Quad Sensor: Thermometer, Altimeter/Barometer, Digital Compass, Step Counter
  • Lens: Mineral
  • Strap: Resin
  • Water Res.: 200M
  • Dimensions: 55.4 x 53.1mm
  • Thickness: 19.3mm
  • Weight: 92g
  • SKU: GGB100-1A3
  • Warranty: One Year Limited

G-SHOCK Watches ship to the USA only.

  • Case: Resin
  • Dial: Ana-Digi
  • Module: 5594
  • Features: 1/100 sec Stopwatch, Countdown Timer, Multi-Function Alarm, Full-Auto Calendar (to 2099)
  • Quad Sensor: Thermometer, Altimeter/Barometer, Digital Compass, Step Counter
  • Lens: Mineral
  • Strap: Resin
  • Water Res.: 200M
  • Dimensions: 55.4 x 53.1mm
  • Thickness: 19.3mm
  • Weight: 92g
  • SKU: GGB100-1B
  • Warranty: One Year Limited
About G-Shock

G-SHOCK was born from a simple idea — a watch should not break when dropped. Back in 1983, the original square-shaped DW-5000C was created after Kikuo Ibe witnessed a child bouncing a rubber ball. It struck him that a watch floating within a rubber case would be impervious to shocks. After a bunch of testing and design with toughness in mind, the brand was born. Nearly 35 years and hundreds of models later, G-SHOCK is still best known for being some of the toughest, hard-wearing watches that money can buy.