Casio G-Shock Mudmaster Pro watch, steel, bio-based plastic, GG-B100X-1AER

Black Casio G-Shock Mudmaster Pro Watch with Compass, Altimeter and Bluetooth

The Casio G-Shock Mudmaster Pro is a black men's watch with a digital compass, altimeter, barometer, thermometer and step counter. The case is stainless steel and bio-based resin, and the strap is bio-based resin. The case is 51.3 mm wide and 19 mm thick. The bezel surface has a fabric-like texture, and the matte finish reduces glare. The luminous hands stay legible even in low light.

With a Bluetooth connection, the watch pairs with a smartphone. The mission log records the watch's altitude data and the route data received through the phone. Included are world time, a stopwatch with 1/100 second accuracy, a timer, five alarms, and sunrise and sunset times. Water resistance is 200 m / 20 atm, so the watch is suitable for swimming, water sports and free diving, but not for scuba diving. The G-SHOCK series began with the DW-5000C, developed by Kikuo Ibe in 1983.

Product number: GG-B100X-1AER
Brand: Casio
Product category: Men's watches
Movement: Quartz (battery)
Battery life: 2 years
Crystal: Mineral crystal
Case material: Stainless steel, bio-based resin
Case color: Black
Case width: 51.3 mm
Case thickness: 19 mm
Weight: 93 g
Shape: Round
Dial color: Black
Strap material: Bio-based resin
Strap color: Black
Strap length (wrist circumference): 145–215 mm
Water resistance: 200 m / 20 atm
Luminous: Yes
Features: Stopwatch / chronograph, digital display, alarm, world time, multifunction, date display, perpetual calendar
Wireless connection: Bluetooth
Barometer: 260–1 100 hPa
Altimeter: -700–10 000 m
Thermometer: -10–+60 °C
Illumination: Double LED light

Frequently asked questions

Does the watch need a battery?
The watch has a quartz movement that runs on a battery. The battery life stated by the manufacturer is 2 years.

What does water resistance of 200 m / 20 atm mean in use?
The watch is suitable for swimming, water sports, snorkeling and free diving, as well as work in water, but not for scuba diving. Do not use the crown or buttons underwater or while the watch is wet.

Does the watch fit a narrow wrist?
The watch is large: the case is 51.3 mm wide and 19 mm thick. The strap fits wrists of 145–215 mm.

What measurements does the watch have?
The watch has a digital compass, altimeter (-700–10 000 m), barometer (260–1 100 hPa), thermometer (-10–+60 °C) and step counter.