Water resistant to 200 m, PRO TREK PRW-3500 employs Triple Sensor Version 3 Technology featuring direction, pressure, and atmospheric sensors. Wearers can check as well as record information on outdoor conditions, and operation is facilitated, even by gloved hands, by button size, non-slip surfaces, and register ring shape. Other features include Multi-Band 6 Atomic Timekeeping technology, LED-backlit digital display, and battery life of ~23 months at full charge.