The life of the Breitling "Chronomat" began in 1940 with the application for a Swiss government patent for an innovative circular slide rule to be used in conjunction with a wrist chronograph. The first Chronomats were then manufactured and sold in 1941/42. Later, in the 1950's, the outstanding success of the Chronomat inspired the birth of the Navitimer, a chronograph with its slide rule modelled after the E6B circular slide rule used by pilots.
The word CHRONOMAT on the dial is replaced by CHRONOMETRE. The bezel is altered with wider incised 5-minute marks and a different font for the numbers on the rider tabs. The previous GT and Vitesse names/versions have been dropped; Chronomats have baton hour markers in a new dial design with wide flat surrounds around the subdials.
This watch is sold with its original Breitling paperwork, original Box, Outerbox, booklets and the chronometre certification.The watch comes paired on its original Breitling buckle, a genuine grey alligator strap+ original Breitling brown cow-hide.