Big Crown ProPilot Altimeter
In the great squadron of available Oris aviator watches, the Big Crown ProPilot Altimeter is the first automatic watch in the world to feature a mechanical altimeter. The altimeter is displayed as a yellow indicator on the outer ring of the dial and measures altitudes up to 15,000 feet. Atmospheric pressure is displayed as a red indicator. These exceptional functions are powered by a Oris 733 movement, and are protected from extreme conditions by a robust 47 mm steel case.