Mudmaster

Casio’s Mudmaster puts analog hands and digital displays behind substantial guards and mud-resistant seals, with controls designed for dirty work rather than delicate fingertips. The family resemblance is strong, but beneath those broad shoulders sit distinct branches: solar-powered, radio-synchronized models and battery-powered alternatives with different sensor packages and connectivity.

The GWG-1000 established the formula in 2015, combining Tough Solar and radio timekeeping with a compass, barometer/altimeter, and thermometer. The GWG-2000 retained that toolkit in a smaller, thinner case, adding Carbon Core Guard construction and forged-carbon components. The later GWG-B1000 brought Bluetooth into the solar-powered branch; its Location Indicator can use the compass hand to point toward a destination registered through the paired phone.

The GG-1000 takes a simpler route: conventional battery power, with compass and temperature readings rather than the full altitude-and-pressure package. The GG-B100 is also battery-powered, but adds Bluetooth, Carbon Core Guard construction, and a Quad Sensor setup that includes a step counter alongside compass, pressure, and temperature sensing. Those similar-looking prefixes conceal meaningful differences in what happens when you press a button.