Air Time The new Oris Big Crown ProPilot An instrument designed for altitude workers

Air Time

The new Oris Big Crown ProPilot

 

An instrument designed for altitude workers

 

The Oris Big Crown ProPilot Altimeter has been developed entirely by Oris to serve as a high-performance instrument forpilots, mountaineers, explorers and research scientists, whowork at altitude. Its sturdy 47mm multi-piece stainless steel case

houses an Oris automatic movement, and a Swiss mechanicalbarometric altimeter and barometer movement.

 

One of the biggest challenges facing Oris engineers was thedesign of the altimeter hand itself. Making the altimetermechanism small enough to fit inside a wristwatch meant the

hand had to be extremely lightweight, but stiff enough to avoid tolerances and therefore inaccurate readings. The solution wasto create it from laminated carbon fibre, making the hand seven times lighter, but 10 times stiffer than the average watch hand.

 

Rajendra Ganotra is the Editor of Spicy Stars Mumbai

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