IWC 1940 B-Uhr FL23883 Flieger 55mm Big Pilot Watch Ref. 431 [IWC Certificated] | eBay
IWC 431 Grosse Fliegeruhr 431 German Military "B-Uhr" 55MM (27900) | European Watch Co.
IWC Pilot B-Uhr Luftwaffe 1940's Ref. 431 Military Pilot Watch WWII 55mm Collector's Condition Mint | Watch Rapport
IWC - Pilot's Watches - Ref. IWC - 431
Maurice Lacroix AIKON AIKON Limited Edition Herrenuhr in Silber AI6008-SS00F-431-C | DE | Watch Shop™
IWC, REF. 431 B UHR WORLD WAR II GERMAN AIR FORCE (LUFTWAFFE) International Watch Co., No. 1013902, case No. 1033302, Ref. 431, request No. FL 23883. Made in 1940 for the German