Part of the Mudmaster series, the Casio G-Shock Mudmaster GG1000 watch is built to withstand dirt and debris no matter how mucky the environment. Twin sensors provide direction and temperature. Available at REI, 100% Satisfaction Guaranteed.Part of the Mudmaster series, the Casio G-Shock Mudmaster GG1000 watch is built to withstand dirt and debris no matter how mucky the environment. Twin sensors provide direction and temperature. Buttons use cylinder guard structure with gaskets to prevent dirt and dust from getting into the multifunction watch mud- and shock-resistant water-resistant to 200m, Twin sensors provide instant access to direction and temperature information when needed under tough conditions, Approximate battery life is 2 years, Digital compass with 16-point direction display and magnetic declination correction, Face is illuminated by a high-brightness auto LED light that ensures high visibility under virtually any conditions, World time features include 31 times zones (48 cities + UTC), daylight saving on/off, Timer features include a countdown timer countdown start time setting range: 1 second-60 minutes (1-minute increments) , Alarm features include 4 daily alarms, 1 snooze alarm and hourly time signal