Breitling's Navitimer Chronograph 43 featuring the Manufacturer Caliber B19- a perpetual calendar chronograph. For our 140th anniversary, we introduced the Caliber B19 - Breitling's first exclusive perpetual calendar chronograph movement. The milestone achievement now powers this special-edition Navitimer, a watch with its own legendary history. First created in 1952 for the Aircraft Owners and Pilots Association (AOPA), the Navitimer was designed for precision in the cockpit, combining a chronograph with Breitling's patented circular slide rule. Pilots swore by its flight-computer functionality, but its appeal soon extended beyond aviation- to star athletes, musicians, and even astronauts. In 1962, it became the fitst Swiss wristwatch in space. This edition bridges past future: a steel case, platinum bezel, ice-blue dial, and the remarkable B19 movement- an automatic chronograph wiht a perpetual calendar. A watch built from heritage, amde for today.