With an altimeter, electronic compass and built-in thermometer, the 3-Sensor from Dakota is perfect for the avid outdoorsman. This men's watch features a trip timer, perpetual calendar, snooze alarm clock and moonglow EL dial light. Case: Plastic Caseback: Plastic screw-down Bezel: Black plastic Dial: Digital Calendar: Digital perpetual calendar Strap: Black polyurethane Clasp: Pin buckle Crystal: Plastic Movement: Quartz Water resistance: 3 ATM/30 meters/99 feet Case measurements: 51mm wide x 18mm thick Strap measurements: 22mm wide x 9.25 long Box measurements: 3 inches wide x 4 inches long x 3.5 inches high Model: 79202 Click here to view our Watch Sizing Guide . All measurements are approximate and may vary slightly from the listed dimensions.