105th Auction
2021/11/13
Lot 199
BreitlingChronomat
A rare and charismatic vintage wrist chronograph
Sold
estimated
3.500—6.000 €
Price realized
4.000 €
specific features
Case
18 K gold, push back, bidirectional rotating bezel with slide rule function.
Dial
Black, red telemeter scale, "Patent 217012".
Movement
Manual.
Case no.648249
Ref.769
Cal.26
Diam.36 mm
Circa1946
Ctry.Switzerland
The patent number 217012 on the dial refers to the slide rule patented in 1942. It was used as a tachometer and pulsometer and enabled elementary operations such as multiplication and division to be calculated. The Chronomat is considered the forerunner of the Navitimer, but it is not a pilot's chronograph. Rather, the earlier model was marketed as the ideal timepiece for engineers, doctors, athletes, aviators and technicians.