A Chronograph from Breitling in Gold Filled and Stainless steel
Circa: Late 1970s
Movement: Valjoux Cal. 7736
Case: 42mm; Gold Filled; Stainless steel snap-on case back; push-down crown; and chronograph pushers at 2 and 4 o'clock; patina on the case near the crown
Dial: Black dial with luminous baton markers, numerals, and hands; inner double time scale for Miles Per Hour and Kilometers Per Hour; outer revolving slide rule on silvered chapter ring; subsidiary dials in white at 3, 6, and 9 o'clock for 12 hour, 30 minute, and constant seconds. Hands have been replaced.
Watch was fully overhauled.
More about Breitling:
In the early 1950s, Breitling released their first pilot’s watch, the ref. 806. Featuring a slide rule chronograph, the model was called the “Navitimer." The slide rule was an important innovation for pilots, because it equipped them with the means to make important calculations mid-flight. While the Chronomat was the first Breitling model to feature a slide rule, the Navitimer--with its long association with the Aircraft Owners & Pilot's Association or AOPA--established Breitling's reputation as a watch company for pilots. The AOPA declared the Navitimer as their official timepiece.
Until the late 1950s, the Navitimer's dial was black-on-black. Later, in the early 70s, Breitling increased the size of the chronograph registers. At around the same time, some Navitimers were equipped with the Valjoux 7736, which powers the present watch. There are luminous applied markers in lieu of numerals, and the case is 18k yellow gold, with the trademark "beads of rice" bezel that typifies the model.