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MASTER OF G
MUDMASTER

GG-B100X-1A

NEW
My GShock

For the fearless adventurer and nature lover, a tough and rugged Master of G MUDMASTER featuring bezel and case constructed of heavy duty carbon and environmentally responsible materials. The watches of the G-SHOCK Master of G line, developed for professionals working in the harshest environments, come equipped with even tougher functionality. And the MUDMASTER takes this even further with the ability to handle the roughest on-land environments, earning the appreciation and trust of rangers and rescue teams operating in extreme environments. The GG-B100 MUDMASTER employs high rigidity carbon in the case to keep damage and warping at bay and ensure extreme airtightness and shock resistance. This timepiece also features a filter to protect against mud, a stainless steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibres, giving it a high level of resistance to dust and mud. The bezel also uses three layers of fine resin with carbon fibre inserts. The rugged design evokes the gasoline jerrycans mounted to off-road vehicles tough enough to traverse the most challenging terrain. Key resin components of the case and band are made with bio-based resin. Produced using renewable organic resources, this material is expected to help reduce environmental impact. Practical and functional, this watch is equipped with digital compass, altimeter/barometer, thermometer and step counter. Easily correct the time using the dedicated CASIO WATCHES app, and tap into loads of other useful features including the Mission Log, which automatically records altitude data obtained from the watch and route data obtained by your smartphone. You can depend on this tough timepiece to deliver what you need to make quick decisions and take decisive action.

  • Carbon fiber-reinforced resin is also used for the cover enclosing the case back
  • Handy smartphone pairing for daily convenience
  • Attention to materials: Bio-based resin

Specifications

FEATURES

Shock-, dust-, and mud-resistant structure delivered by carbon fiber-reinforced resin

Offering strength, lightness and excellent weather resistance, a carbon fibre-reinforced resin case protects the module. Gaskets are applied around the buttons to ensure a tight seal, providing reliable dust and mud resistance even in harsh environments. Carbon fiber-reinforced resin is also used for the cover enclosing the case back and for the movable parts on the underside of the band, enhancing both durability and wearing comfort.

*Image shows the GG-B100XM-1A.

Direction Measurement Display Image

Digital compass

Altimeter Display Image
Barometric Pressure Measurement Display Image

Altimeter/Barometer

Temperature Measurement Display Image

Thermometer

Step count display range:

Step counter

Quad Sensor supporting land missions

In addition to the triple sensor that measures compass bearing, altitude/barometric pressure, and temperature, the watch is equipped with an accelerometer for step counting. By collecting diverse data, the Quad Sensor makes it easy to monitor environmental changes and track activity history, helping ensure reliable performance in land missions under the toughest conditions.

*Image shows the GG-B100XM-1A.

Bio-based resin image of GG-B100X

Bio-based resin

Key resin components used in the case, band, and more are made with bio-based resin.

* Image is included for illustrative purposes only.

Smartphone Link Model

Smartphone Link

The watch connects to a smartphone via Bluetooth® to automatically adjust the time. Using the dedicated app, various watch settings and mission logs can be managed with ease.

A photo of GG-B100XM lit up

Super Illuminator

Super Illuminator (high-brightness auto double LED light) for maintaining watch readability in the dark

*Image shows the GG-B100XM-1A.

*The colour tone of the listed products may differ from the actual product in some cases.

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