Breitling SA () is a Swiss luxury watchmaker founded in 1884 in Saint-Imier, Switzerland, by Léon Breitling. The company is known for its precision-made chronometers designed for aviators and is based in Grenchen, Switzerland. History Breitling SA was founded in Saint-Imier by Léon Breitling in 1884. When Breitling died in 1914, the business passed to his son, Gaston, and then to his son, Willy, in 1935. Willy's children were not interested in pursuing the family business, so the Breitling factory in La Chaux de Fonds closed in December 1978. Willy, already in poor health, died in May 1979. Ernst Schneider, owner of the Sicura Company in Grenchen, bought the Breitling name from the founding family in 1979. Production of watches moved to the Sicura factory, which later changed its name to Montres Breitling AG and then Breitling AG in 1994. The Schneider family retained ownership until April 2017, when Ernst's son, Theodore Schneider, sold the majority stake (80%) in Breitling to CVC Capital Partners for $870 million. Schneider retained 20% control of Breitling until November 2018, when he sold these remaining 20% to CVC. On 23rd December 2022, Partners Group, a Swiss investment and private equity firm, took over the majority of the Breitling shares from CVC. Co-founder of Partners Group, Alfred Gantner, is taking over the presidency of Breitling's directorial board. Products The company's mechanical or quartz movements are chronometer certified by the COSC and are usually marketed towards either diving (SuperOcean) or aviation (Navitimer). Aviation models offer aviation functions largely as complications, since their function in aviation has largely been replaced by modern electronic instruments. The styling of Breitling watches consists of polished cases, bracelets, and large watch faces for improved readability. Many models have an automatic winding mechanism with complications. Breitling offers logo customization for pilots with group orders. By the 1990s, the use of logos for military aviation customers expanded to include various unit logos on the Aerospace and Chronospace Auto models, primarily those of squadrons, usually part of a group purchase by pilots and navigators/flight officers of the particular unit. Historically, Breitling has sourced movements from suppliers such as Valjoux, ETA, and Venus rather than producing movements in-house; however, in 2009 Breitling developed the B01, a self-winding, column wheel chronograph movement, for use in the Breitling Chronomat 01 and Navitimer 01. Navitimer In the 1940s, Breitling added a circular slide rule to the bezel of