Anyone with an interest in airplanes and flight will name the Navitimer as their watch of choice for performance and functionality. It launched in 1952 with one very distinctive feature: a circular slide rule that enables pilots to perform some two dozen operations and conversions relevant to navigation, without any additional tool. Breitling has now combined this trailblazing invention with one of the most popular complications: a split-seconds chronograph for simultaneously recording two elapsed times. Powered by the chronometer-certified Breitling B03 calibre, this new Navitimer retains the defining features of the collection, namely a round case in steel topped by a slim, bidirectional rotating bezel with a crenelated edge.