The base metal Keystone case is probably not the original but is in fairly good condition, although the front bezel won't screw on all the way. This is a great historical military watch. The item "Vintage 16s Hamilton 4992B 22 jewel Navigational pocket watch. Runs great" is in sale since Friday, November 17, 2017.
This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Pocket Watches\Antique". The seller is "sillybrit03" and is located in Henderson, Texas. This item can be shipped worldwide.