For the fearless adventurer, a tough and rugged Master of G MUDMASTER featuring a strong, durable metal bezel. 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 another step further with the ability to handle the roughest rubble and debris-strewn terrains, earning the appreciation and trust of rangers and rescue teams operating in extreme environments. The GGB100XM-1A features a silvery stainless-steel bezel with a honing finish, delivering outstanding scratch resistance that protects against mud and dust and a subtle matte texture that minimizes reflected light. These MUDMASTER employ high rigidity carbon for the carbon fiber-reinforced case to keep damage and warping at bay and ensure a tight seal and excellent shock resistance. Featuring a filter to protect against mud, a stainless-steel panel back, and a back cover made of shock-resistant fine resin embedded with glass fibers, these timepieces provide a high level of resistance to dust and mud. Key components for 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, the watches are equipped with digital compass, altimeter/barometer, and thermometer, as well as step counter. Easily correct the time using the dedicated 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 these tough timepieces to deliver what you need to make quick decisions and take decisive action. Stainless steel bezel: Refined craftsmanship highlighting the aesthetics of practical elegance As a defining element of the toughness-oriented design, the bezel conveys a strong presence. Made with stainless steel, its complex form of multiple surfaces and contours is shaped through forging. The top surface, beveled edges, and sides are each finished with different polishing techniques. The GG-B100XM employs a silver-colored bezel with a honed matte finish that enhances resistance to mud and dust while reducing light reflection, giving it a calm, subdued texture. Shock-, dust-, and mud-resistant structure delivered by carbon fiber-reinforced resin Offering high strength and excellent weather resistance, the carbon fiber-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. Additional Features:

Digital compass

Altimeter & Barometer

Thermometer

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. Bio-based resin Key resin components used in the case, band and case back are made with bio-based resin. 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. Super Illuminator High-brightness auto double LED light improves watch readability in the dark. Case Size Case size (L× W× H): 55.4 × 51.3 × 19.4 mm