Breitling Old Navitimer

Introduced in 1952, the Navitimer design provided pilots and aircrews with a highly innovative chronograph design. For the first time ever, this instrument featured a “navigation computer” capable of executing every calculation a flight plan requires, converting miles to kilometers or vice versa, and more. This original Navitimer was later voted official watch of the AOPA, the worldwide pilots’ association.
Over the years, this flyer’s favorite mellowed into what is now known as the Old Navitimer, having acquired the selfwinding mechanism of the Breitling 13 watch movement and switched to a watertight case. Solving navigational problems with its handy slide rule is as easy as ever: estimating climbing rates, for instance - i.e. how many seconds a plane will need to climb 3,000 feet at a speed of 100 feet per minute or, more simply, currency conversions.