Casio G-Shock Mudmaster GG-B100X Watch -1A3ER

Digital-analogue outdoor watch in a black and green colour scheme, featuring a bezel made of carbon fibre. Carbon Core Guard construction maximises resistance to shocks, mud and dust, and the 20 bar water resistance allows you to use the watch while swimming and diving without breathing apparatus. The model is equipped with Quad Sensor technology, Bluetooth connectivity and features supporting outdoor navigation and activity tracking.

Accuracy is ensured by a quartz movement with an accuracy of ±15 seconds per month, powered by a CR2025 battery providing approximately 2 years of operation. Thanks to the Bluetooth module you can connect the watch to your smartphone, automatically synchronise the time, and access additional options using the Casio Watches app. The app allows you to change settings, use world time, save routes and activate the phone location function.

The Mudmaster GG-B100XM-1AER is equipped with the Quad Sensor system:

• digital compass – displays direction in 16 points, ranging from 0–359 degrees, indicates north with a pointer and allows for magnetic declination adjustment
• altimeter – measures altitude from –700 to 10,000 metres, records up to 14 manual readings and automatically logs summary ascents and descents
• barometer – monitors pressure between 260–1100 hPa, shows a pressure trend graph and provides an alert signal for sudden weather changes
• thermometer – measures the ambient temperature between –10 and +60 deg. C
• pedometer – 3-axis accelerometer counts up to 999,999 steps

When connected to the app, two field functions are available: Mission Log, which automatically records your route and altitude profile, and Location Indicator – after marking a point on the map, the second hand shows its direction and the screen displays the distance to the target.

20 bar water resistance protects the watch when submerged to a depth of 200 metres. Tightly sealed buttons and an internal filter system prevent mud, dust and small debris from reaching the movement. The shock-resistant case stands out during intense outdoor activities.

The case, measuring 55.4 × 51.3 × 19.4 mm, is made from resin reinforced with carbon fibre. Carbon Core Guard construction increases rigidity and protects the movement against deformation. The carbon bezel consists of three layers of resin and carbon fibre inserts, with a transparent outer layer revealing the internal carbon structure. The dial is protected by spherical mineral glass, and time is displayed by three hands and a negative digital display. Features are operated via side buttons, and the hand shift function makes it easier to view data on the display.

The dual LED Super Illuminator lighting system illuminates both the dial and digital display. Auto Light technology activates the backlight when the watch is turned towards the face, with a choice of 1.5 or 3 second illumination. The Neobrite coating on the hands ensures legibility in night conditions.

The strap is made of durable, bio-based resin that is resistant to moisture and sweat. Carbon components on the underside of the strap strengthen the attachment and improve fit to the wrist. The metal buckle allows for adjustment within a range of 145–215 mm.

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

• Carbon Core Guard construction
• carbon bezel with carbon fibre inserts
• shock, mud and dust resistance
• 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
• compatible with Casio Watches app
• Mission Log and Location Indicator features
• Super Illuminator backlight
• Neobrite-coated hands
• spherical mineral glass
• world time, stopwatch, countdown timer and alarms
• bio-based resin strap