From the casio g-shock master of g series, the mudmaster men’s watch is meant to withstand rough land environments. The 55mm watch is made of high-rigidity carbon with a carbon core guard structure. A filter protects against high levels of dust and mud, even in severe environments. The dual back cover consists of a stainless steel panel and an outer cover of shock-resistant fine resin embedded with glass fibers. Quad sensor capabilities use sensors to pack compass, altitude/barometer, temperature measurements and an accelerometer (tracking your step count) into a compact configuration. Sync with the g-shock app to save altitude and route data. The dual-display watch is mud-resistant, shock-resistant, water-resistant up to 200 meters, and secures with a green rubber strap.