Launched in 1941, the Breitling Chronomat was the first watch to feature a patented slide rule bezel and was the forerunner of the famous Navitimer series. This is a truly revolutionary watch that combines a chronograph with a slide rule calculator, allowing complex calculations to be performed quickly without the use of additional equipment. The Chronomat watch was produced alongside the Navitimer watch until the late 1970s, when it was removed from the Breitling catalog during the sale of the company. It eventually returned in 1984 with a completely new design, removing the slide rule to differentiate it from the Navitimer and bring it up to date with modern trends. This replica Breitling Chronomat watch is made of stainless steel. The black dial is decorated with sub-dial and stick hour markers. The overall effect is very fashionable and classic. Despite lacking the slide rule that originally made it famous, the DNA of the series remains and the Chronomat remains a popular choice among chronograph collectors around the world.