This wristwatch is equipped with a mechanical barometric altimeter and barometer movement. In fact it is the world’s first automatic mechanical altimeter watch for an affordable price.
Oris says: “The Big Crown ProPilot Altimeter has been developed entirely by us to serve as a high-performance instrument for pilots, mountaineers, explorers and research scientists, who work at altitude. Its sturdy 47 mm multi-piece stainless steel case houses an automatic movement, and a Swiss mechanical barometric altimeter and barometer movement.”
First please listen to my conversation with Ulrich Herzog, the President and Co-Owner of Oris. Uli will tell you everything about his new baby…
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Uli, today showing me the altimeter…
The Oris Big Crown ProPilot Altimeter has two crowns.
The crown at 2 o’clock is a conventional crown to adjust the time and date, and to wind the watch as necessary (the automatic Sellita-movement has a 38-hour power reserve)
A second screw-down crown at 4 o’clock operates the altimeter.
When screwed down into ‘Position 0’, the altimeter is inactive and the watch is water-resistant to 10 bar; the altimeter is activated by unscrewing the crown into ‘Position 1’, indicated by a red ring.
When the crown is pulled out into ‘Position 2’, the altimeter can be calibrated. Once set, the watch shows the current altitude via the yellow indicator, and the corresponding air pressure via the red indicator. The altitude scale is around the outer dial ring; it can measure altitude up to 15,000 feet or 4,500 metres (two models are produced, one with a scale in feet, one in metres). The air pressure scale is recessed between the altimeter scale and the central dial. Once the altimeter is no longer required, the crown can be returned to Position 0 by screwing it down, resealing the watchcase and ensuring it is once again water-resistant to 10 bar.
Please watch my video to better understand how the new Oris Big Crown ProPilot Altimeter functions…
>> On page 2 you will discover more technical details about the Oris Big Crown ProPilot Altimeter >>>