Hamilton Watch Co. U.S. Government issue navigational 'G.C.T' pocket watch, ref. 4992B, signed 22 jewel Adj. Temp. and 6 positions lever movement, no. 4C12505, the black dial signed G.C.T. with inner Arabic
![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
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