Built for outdoor adventures, the Casio Pro Trek Opp Triple-Sensor Watch delivers simple style and dependable service. The watchs barometric-pressure-tendency alarm alerts you to sudden changes in pressure readings that could mean foul weather is approaching. Altimeter measures altitude in 1-meter increments. Digital display compass readings with 60 seconds of continuous measurement. Other features include sunrise/sunset data, five alarms with snooze, countdown timer and stopwatch. Low-temperature resistance keeps watch operating in temperatures as low as 14F. Durable black resin band and case with large side buttons for easy access even when wearing gloves. Flick your wrist for full-auto LED light with Afterglow. Solar-powered rechargeable battery lasts up to nine months without exposure to sun. Water-resistant to 100 meters. Case dia: 54.6mm. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Size: L. Color: Black. Gender: Male. Age Group: Adult. Type: Digital Watches.