{"product_id":"original-wwii-u-s-army-air-corps-shock-absorbing-carrying-case-for-an-5740-g-c-t-navigator-pocket-watch-unissued-with-original-packaging","title":"Original WWII U.S. Army Air Corps Shock Absorbing Carrying Case for AN-5740 G.C.T. Navigator Pocket Watch - Unissued With Original Packaging","description":"\u003cp\u003eOriginal Items: Only One Available. We have had several of these cases with the correct watch previously, but this is the first time we are able to offer an intact empty case in near mint condition with original packaging. As used by navigators on B-17 Flying Fortress and B-24 Liberator this is a shock absorbing carrying case for the AN5740 pocket watch. The case is marked U.S. Air Corps, which means it is quite early issue, as in 1941 the U.S. Army Air Forces were created, which by the end of the war had superseded the Air Corps, and would eventually become the U.S. Air Force.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eThese pocket watches were used for navigation purposes by all the branches of the US. Military prior to, during, and after WWII. The three main manufacturers of the AN-5740 and AN-5740-1 were The Hamilton Watch Co., The Elgin National Watch Co. and the Waltham Watch Co.\u003c\/p\u003e\n\u003cp\u003eThe Carrying Case is a steel case, topped with a glass window and rotation door, and is marked with a brass data plate that reads:\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eCASE, CARRYING, WATCH,\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNAVIGATION\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eU.S. ARMY A. C.\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eGEO. H. ADAMSON\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cstrong\u003eTECUMSEH, MICHIGAN, U.S.A.\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe case was designed to suspend the watch to protect it from the vibration and turbulence of an aircraft as well as a protective glass viewing panel to the user could look down onto it without removal. The internal springs are all still strong, and the felt padding on the cradle is excellent. This would be perfect for an AN-5740 that has lost its original case. Ready to display!\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: CASE ONLY, no watch included.\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWWII Navigation Pocket Watch History\u003c\/strong\u003e\u003cbr data-mce-fragment=\"1\"\u003eDuring World War II, Hamilton, Waltham, \u0026amp; Elgin produced a variety of time pieces to support the war effort. In fact, all of Hamilton's production was dedicated to defense purposes. However, they did still produce some wrist watches using excess movements produced in the 1920's.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eOne of the war-related watches was a pocket watch with a central sweep second hand. The movement was based on the 21 jewel, 16 size movement. However, an extra jewel was added to support the second hand pinion, so the movement got 22 jewels.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eKnown as a \"Navigator's Watch\" as it was used by aviators to aid in navigation by the US Navy during the war.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eYou'll notice a couple of advertisements from WWII-era Life Magazines that featured the 4992B.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eYou'll often see these in a case or a box that was intended to isolate it and protect it from shocks or accidental damage.\u003c\/p\u003e","brand":"Original Items","offers":[{"title":"Default Title","offer_id":40490118021189,"sku":"ONJR23MJ018","price":395.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1524\/1342\/products\/ONJR23MJ018__09.jpg?v=1674245016","url":"https:\/\/www.ima-usa.com\/products\/original-wwii-u-s-army-air-corps-shock-absorbing-carrying-case-for-an-5740-g-c-t-navigator-pocket-watch-unissued-with-original-packaging","provider":"International Military Antiques","version":"1.0","type":"link"}