Reaching extremes has always been one of mankind’s challenges. While the watchmaking industry has already provided watches for the exploration of both the top of the world or the deepest trench under the sea, today we have something that goes a few miles further… Seeking a rugged tool watch for hikes and explorations? The Favre Leuba Bivouac 9000 might be the perfect wrist companion, being the first watch capable of measuring altitude everywhere on Earth – and by that, we really mean everywhere, even on top of the Everest. Let’s take an in-depth look.