Original Vietnam War U.S. Air Force Hamilton AN5740 G.C.T. 24 Hour Navigator Pocket Watch U.S. Artillery The exterior metal finish shows

The exterior metal finish shows a lot of light pitting and peppering

The fur backing of the goggles has also degraded over time

dated 1915 on the top along with a lot of other markings

it was first adopted by the London Metropolitan Police in 1863 to replace the "stovepipe" top hat worn since 1829

which itself saw service towards the end of World War I

Original Vietnam War U.S. Air Force Hamilton AN5740 G.C.T. 24 Hour Navigator Pocket Watch U.S. Artillery The exterior metal finish showsOriginal Items: Only One Set Available. As used by navigators on B 17 Flying Fortress and B 24 Liberator this is a FULLY FUNCTIONING Hamilton AN5740 pocket watch. This is a very good example of the Hamilton U. S Air Force GCT Navigation watch type AN 5740, most likely made in 1968. The "GCT" or AN 5740 AN 5740 1 pocket watches were used for navigation purposes by all the branches of the US. Military prior to, during, and after WWII. The three main