Breitling · Manual Wind

178

Not a Breitling movement but the Venus 178, the hand-wound column-wheel chronograph inside the original Navitimer, reference 806. Breitling built that watch in 1952 at the request of the American Aircraft Owners and Pilots Association, wrapping the chronograph in a rotating slide rule so a pilot could work out speed, fuel burn and rate of climb on the wrist.