In 1942, Breitling created the Chronomat, the first timepiece with a circular slide rule. Based on a patent filed in 1940,… | Breitling, Vintage watches, Slide rule
1967 Breitling Chronomat ref. 808 1942 Breitling Chronomat ref. 769 In 1915, Breitling introduced the first wrist-chronograph watch and its crown controlled all…
How it Works: The Slide Rule of the Breitling Chronomat
WatchTime Wedesnday: the History of the Breitling Navitimer - Monochrome- Watches