Vintage and Rare Favre Leuba Bivouac watch.
This rare watch, from 1962, was the first ever to be equipped with a mechanic altimeter. It has a capsule with a barometer that allow the red hand to move and mark the altitude pressure via the dial scale.
This example cames in NOS (new old stock) conditions. Unworn.
S.steel case with rotating bezel. Screw back.
Original F.L bracelet.