![LOT:696 | A base metal open face Air Ministry Navigation Master chronometer pocket watch by Hamilton. LOT:696 | A base metal open face Air Ministry Navigation Master chronometer pocket watch by Hamilton.](https://smhttp-ssl-58703.nexcesscdn.net/lot_images/auction/large/97780-10.jpg)
LOT:696 | A base metal open face Air Ministry Navigation Master chronometer pocket watch by Hamilton.
![AN 5740 Navigation watch, ca. 1940s. Creator For sale as Framed Prints, Photos, Wall Art and Photo Gifts AN 5740 Navigation watch, ca. 1940s. Creator For sale as Framed Prints, Photos, Wall Art and Photo Gifts](https://www.mediastorehouse.com/p/731/5740-navigation-watch-ca-1940s-23871315.jpg.webp)
AN 5740 Navigation watch, ca. 1940s. Creator For sale as Framed Prints, Photos, Wall Art and Photo Gifts
![Hamilton 1942 4992B GCT US Military WWII Navigation 22J Pocket Watch AN 5740 For Sale at 1stDibs | hamilton 4992b, hamilton gct pocket watch, hamilton 4992b military pocket watch Hamilton 1942 4992B GCT US Military WWII Navigation 22J Pocket Watch AN 5740 For Sale at 1stDibs | hamilton 4992b, hamilton gct pocket watch, hamilton 4992b military pocket watch](https://a.1stdibscdn.com/hamilton-1942-4992b-gct-us-military-wwii-navigation-22j-pocket-watch-an-5740-for-sale/1121189/j_81942211575445705796/8194221_master.jpg)
Hamilton 1942 4992B GCT US Military WWII Navigation 22J Pocket Watch AN 5740 For Sale at 1stDibs | hamilton 4992b, hamilton gct pocket watch, hamilton 4992b military pocket watch
![Hamilton 4992B G.C.T. 16s 22j U.S.N. AN 5740 Navigation Pocket Watch W/ Carrying Case SERVICED C1941 - Etsy Hamilton 4992B G.C.T. 16s 22j U.S.N. AN 5740 Navigation Pocket Watch W/ Carrying Case SERVICED C1941 - Etsy](https://i.etsystatic.com/19096757/r/il/c7975b/4319020718/il_fullxfull.4319020718_q1kl.jpg)
Hamilton 4992B G.C.T. 16s 22j U.S.N. AN 5740 Navigation Pocket Watch W/ Carrying Case SERVICED C1941 - Etsy
![Navigation Master Watch - 16 Size Enamel Dial Hamilton Watch Co., U.S.A., Model 3992B, movement No. 3C1054. Made for the U.S. Government and sent to the British Air Ministry (No. A.M. 480-1942), Navigation Master Watch - 16 Size Enamel Dial Hamilton Watch Co., U.S.A., Model 3992B, movement No. 3C1054. Made for the U.S. Government and sent to the British Air Ministry (No. A.M. 480-1942),](https://antiquorum-swiss-assets.s3.us-west-2.amazonaws.com/images/221/lots/129/129.jpg)
Navigation Master Watch - 16 Size Enamel Dial Hamilton Watch Co., U.S.A., Model 3992B, movement No. 3C1054. Made for the U.S. Government and sent to the British Air Ministry (No. A.M. 480-1942),
![Original WWII U.S. Army Air Forces Hamilton AN5740 G.C.T. 24 Hour Navi – International Military Antiques Original WWII U.S. Army Air Forces Hamilton AN5740 G.C.T. 24 Hour Navi – International Military Antiques](https://www.ima-usa.com/cdn/shop/products/ONSV7628__03.jpg?v=1607096004)