First released in 1984 and initially designed to meet the sophisticated requirements of Frecce Tricolori military pilots, the Breitling Chronomat is one of the brand's best-selling collections and is now established as a classic aviation timepiece. Aesthetically, the watch is defined by its round case shape, a tachymeter for calculating speed and its distinctive bezel, which comes complete with four rider tabs for added grip. Moreover, the Chronomat is notable for being Breitling's most diverse range of watches, with a variety of colour schemes and case materials to choose from.