Reference: GGB100-1A3

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Case: carbon and resin
Size: 55.4 x 53.1mm
Movement: manufacture quartz caliber
Function: date, world time, chronograph, thermometer, altimeter, barometer, compass, step counter, Bluetooth connectivity
Dial: black with LED illuminator
Hands: luminous
Power Reserve: approximately two years
Water Resistance: 200m 
Strap/Bracelet: resin
Factory Warranty: one year


The Master of G Series Mudmaster adds this carbon resin model, which incorporates a new type of structure designed and engineered to withstand rough land environments.

The case is made of high-rigidity carbon material to protect against damage and deformation due to impact and other rough treatment, while metal button pipes ensure a tighter seal against the external environment. A filter further protects against the invasion of mud, for the high level of dust and mud resistance required when in severe environments. In addition, the dual back cover consists of a stainless steel panel back and an outer cover made of shock-resistant fine resin embedded with glass fibers.

Quad Sensor capabilities use compact sensors that make it possible to pack a compass, altitude/barometer, and temperature measurements, along with an accelerometer that keeps track of your step count, into a compact configuration. A special G-Shock app, which simplifies the configuration of watch settings, also includes a new Mission Function. The app automatically records altitude data measured by the watch and route information acquired by a smartphone's GPS. Manually obtained altitude points can be plotted on your route.