Casio G-Shock Mudmaster GG-B100XM-1AER Watch

A black digital-analog outdoor watch featuring a silver stainless steel bezel. The Carbon Core Guard construction ensures high resistance to impacts, mud, and dust, while 20-bar water resistance allows for use while swimming and snorkeling. The model is equipped with a set of Quad Sensors, Bluetooth connectivity, and features to aid navigation and track outdoor activities.

The watch is powered by a quartz movement with an accuracy of ±15 seconds per month, powered by a CR2025 battery that provides approximately 2 years of operation. Bluetooth connectivity allows you to pair the watch with a smartphone, automatically adjust the time, and access additional features in the Casio Watches app. The app allows you, among other things, to change settings, use world time, record routes, and activate the phone-finding feature.

The Mudmaster GG-B100XM-1AER is equipped with a Quad Sensor set:

• digital compass—indicates direction in 16 points, with a range of 0–359 deg., a pointer indicating north, and magnetic declination correction
• altimeter—measures altitude in the range of -700 to 10,000 meters, stores up to 14 manual readings, and provides an automatic log with the total of ascents and descents
• barometer—records pressure in the range of 260–1,100 hPa, displays a trend graph, and alerts the user with a signal in case of a sudden change in weather
• thermometer—measures ambient temperature in the range of -10 to +60 deg. C
• pedometer—features a 3-axis accelerometer and counts up to 999,999 steps

When paired with the app, two features useful in the field are available: Mission Log, which automatically records the route traveled along with an elevation profile, and Location Indicator—after marking a point on the map, the second hand points in its direction, and the display shows the distance to the destination.

Water resistance of 20 bar allows the watch to be submerged to a depth of 200 meters. Sealed buttons and internal filters prevent mud, dust, and fine debris from entering the movement. The design is also shock-resistant, making it ideal for intensive use in challenging terrain.

The watchcase, measuring 55.4 × 51.3 × 19.4 mm, is made of carbon-fiber-reinforced resin. The Carbon Core Guard construction increases the watchcase’s rigidity and protects the movement from deformation. The forged stainless steel bezel features a multifaceted design and a matte, honed finish that minimizes light reflections and hides minor scratches. The dial is protected byspherical mineral glass, and the display features three hands anda negative digital display. The functions are operated via side buttons, and the hand-retraction mechanism makes it easier to read the display.

The dual LED Super Illuminator backlight illuminates the dial and the digital display. The Auto Light feature activates the light when you point the watch toward your face, and the illumination time can be set to 1.5 or 3 seconds. The hands are coated with Neobrite fluorescent material, which improves readability after dark.

The strap is made of flexible bio-based resin that is resistant to moisture and sweat. Carbon fiber elements on the inside reinforce the fastening and improve the fit around the wrist. The metal buckle allows for adjustment within a range of 145–215 mm.

• watch
• original manufacturer packaging
• user manual
• warranty card

• Carbon Core Guard construction
• forged stainless steel bezel
• resistance to shock, mud and dust
• 20 bar water resistance
• digital compass
• altimeter up to 10,000 m
• barometer with pressure change alarm
• thermometer from -10 to +60 deg. C
• pedometer
• Bluetooth connectivity
• Casio Watches app compatibility
• Mission Log and Location Indicator functions
• Super Illuminator lighting
• Neobrite-coated hands
• spherical mineral glass
• world time, stopwatch, countdown timer and alarms
• bio-based resin strap