1969 Favre-Leuba Twinmatic date high-beat automatic chronometer movement with 36000 vibrations per hour. In the late 60s Favre-Leuba was a giant company, they bought Jaeger le Coultre brand and used exactly the same components and movements.
Favre-Leuba is a Swiss manufacturer. Pioneer in watch design, manufacturing and distribution, thus contributing immensely to the watchmaking industry in Switzerland. The foundation of the brand was laid in 1737 when Abraham Favre was registered as a watchmaker.
1925 – Developed the single button Chronograph wristwatch
1962 – Developed the FL251, extra thin (2.95mm), twin barrel calibre with 50-hour power reserve
1962 – Developed the Bivouac, first ever altimeter / barometer wristwatch.
1964 – Developed Deep Blue, water resistant up to 200meters
1966 – Developed the first diving chronograph wristwatch
1968 – Development of the model Bathy 50, first ever wristwatch with depth or pressure gauge for divers.
1968 – Development of the Twinmatic with 36000 vibrations per hour.