Offered at the lowest possible fixed price: Favre Leuba Bivouac 9000. This model is the only mechanical wristwatch with incorporated barometer and altimeter on Earth capable of displaying the altitude from 0 to 9,000m using an integrated aneroid capsule system. It is also one of the very few mechanical wristwatches ever produced with a built-in mechanical altimeter, whereas others can only measure up to 4,000m. The barometer, altimeter, power reserve indicator and the watch itself work perfectly. Favre-Leuba was founded in 1737, is the second-oldest Swiss watch brand, after Blancpain, which was founded in 1735. The Bivouac 9000 had a retail price of 7,500 CHF/Euros. It is a discontinued model featuring a rare triple complication: a barometer, an altimeter, and a power reserve indicator. The watch is like-new condition, never polished, original condition with minimal to no visible signs of wear. The case, crystal, and bezel are clean. The Bivouac 9000 has a functional mechanical altimeter and barometer complication despite other brands with decorative manometer etc. The Favre-Leuba Raider Bivouac 9000 case is crafted from Grade-5 titanium. This durable and hypoallergenic alloy ensures that the massive mechanical altimeter watch remains lightweight and comfortable on the wrist. A rare and highly unusual tool watch combining traditional watchmaking with real-world functionality offered in full package with 2 Antelope straps(OEM and Hirsch with quick release). The alpinist Adrian Ballinger used this model to climb Everest as shown in the photo attached. So the altimeter was tested and confirmed to reach that height. As a wrist presence you can see my first photo, i have 19cm wrist and it fits well. The watch combines serious engineering with robust sport design, making it both a technical instrument and a distinctive collector’s piece. I recommend reading escapementmagazine dot com article about Favre Leuba Bivouac 9000 that is fascinanting. Gr.5 Titanium case and buckle FL311 manual-wind movement derived from the Eterna Caliber 39 (3903.M), equipped with an in-house barometer and altimeter module. Power reserve indicator, 65 hours power reserve Rotating bezel that measures up to 3000 height that can be rotated 3 times for the full 9000m measurement. The Bivouac 9000 is no longer available becoming rare and a good investment, it might represent a rare opportunity to own a modern mechanical instrument watch with genuine historical roots. Full Package and two straps: 1. Favre Leuba Kudu Antelope leather strap with original titanium buckle 2. Hirsch Tritone Kudo Antelope strap with quick release springbars. Both straps presented in the photos. Sold as is. Shipment via DHL Express fully insured