Created during the 1950's, the Type XX was initially a designation issued by the French Ministry of Defense to specific chronographs. Mandated to soldiers of the French Air Force and Navy, such wristwatches had to be highly accurate and encompass functions such as a flyback chronograph. The collaboration between the French army and Breguet later brought the Type XX chronograph to fame.

Ref Variations: 3810ST-92-9ZU,