Case material: Steel; Charge: Manual; Conditions: Never worn Year : 1939; Presentation condition : With dealer guarantee ; Model: Tank Vermeil Price on request Gmtbroker Reference: 1613 This is an excellent vintage Longines Military Chech Air Force ref.1613 in stainless steel. Manufacturted in 1939, this anti-magnetic model was build for the Check Air Force in WWII. Marked on the back with `Majetek Vojenské Spavy 1613?. Very rare cushion formed case wrist watch with turning bezel. Beautiful and just serviced collectors item ! Great gentleman´s pilots watch with military history. 12 month of Bachmann & Scher warranty !