Breitling Navitimer B01 Chronograph 43 Japan Edition AB01381G1B1P1 Automatic Men's WatchProduct Overview The iconic pilot's chronograph from Breitling. In 1952, Willy Breitling developed a wristwatch with a rotating slide rule chronograph, allowing pilots to perform necessary calculations for flight. This model became the official timepiece of the Aircraft Owners and Pilots Association (AOPA) and was named "Navitimer," meaning "Navigation + Timer." Since then, the Navitimer has become the de facto standard for pilot watches, cherished by