Since its founding by Eugène Meylan in 1914, Glycine has been producing watches at its factory in Bienne, Switzerland. Glycine became a noteworthy watch maker in the early 1950s for the introduction of their Airman model, a 24 hour watch favored by both military and commercial pilots. The Airman was worn by many United States Air Force pilots during the Vietnam War. Glycine still makes several variants of the Airman. Other models in the Glycine line include the Incursore, Combat, and Lagunare series.