Watch with extensive functionality M-Tac. This model is an essential assistant to people who lead an active life, love to hike in the mountains, and are ideal for the military. The unique features possessed by the watch M-Tac will be useful not only for people involved in extreme sports such as skydiving but will be irreplaceable in everyday life. It can show you the atmospheric pressure and air temperature. By tracking the watch, you can predict in advance the deterioration of health and distribute your workload well at present.    M-Tac multifunction tactical watch is equipped with a rugged, durable case made of polycarbonate rugged stainless steel bezel. Glass is made of organic polycarbonate, which resists scratches and chips without any problem. Water-resistance 3 ATM.30 m = WR30 = 3 ATM = 3 Bar:Only accidental contact with water. Waterproof class to allow splashing when washing hands.