In the 1940s, Breitling added a circular slide rule to the bezel of their chronograph models for use by aircraft pilots. This became the famous Navitimer model. During the 1950s and 1960s, a version of the Navitimer was offered by the Aircraft Owners and Pilots Association with the AOPA logo on the dial.
In 1961, Scott Carpenter, one of the original astronauts in the Mercury space program, approached Breitling with idea of incorporating a 24 hour dial instead of the normal 12 hour dial. This was needed because of the lack of day and night during space travel. Breitling complied, and produced the 24 hour Navitimer which Carpenter wore on his 1962 space flight. Breitling then proceeded to produce the 24 hour version as the so-called Cosmonaute Navitimer – under both Breitling and AOPA logos.
The Breitling Emergency version contains a radio transmitter for civil aviation use which broadcasts on the 121.5 MHz distress frequency and serves as a back-up for ELT-type airborne beacons. (For military users, Breitling has equipped the Emergency with a miniaturized transmitter operating on the 243 MHz military frequency.) Under normal conditions—flat terrain or calm seas—the signal can be picked up at a range of up to 90 nautical miles (167 km) by search aircraft flying at 20,000 feet (6,000 m). As of 1 February 2009, the Cospas-Sarsat Satellite System will no longer monitor the 121.5/243 MHz frequency; however, the signal transmitted by the Emergency was never strong enough to be picked up by satellite, and Breitling has announced that, as these frequencies will still be monitored by aviation, particularly during the localization phase of a rescue attempt, there are no plans to modify the signal’s frequency.
Reuters reported that two British pilots, Squadron Leader Steve Brooks and Flight Lieutenant Hugh Quentin-Smith, crashed their helicopter in Antarctica and were rescued after activating their Breitling Emergency transmitter watches. The two pilots were in their lifeboat when a Chilean Otter aircraft found them after homing in on signals from their watches.
The Emergency is available for customers who do not hold a pilot’s licence, but they must sign an agreement stating that they will bear the full costs of a rescue intervention should they trigger the distress beacon. The model was heavily advertised by the Breitling Orbiter 3—both Brian Jones and Bertrand Piccard were wearing the Emergency. Also, Bear Grylls wears an Emergency with yellow face and rubber strap in many episodes of Man vs.Wild.