Bulova 'Type A17A' - Korean War Era U.S. Military issue.
Parkerized Steel Case measures 40mm lug to lug x 32mm wide non inclusive of the Crown while using Calipers.
Black Dial shows Luminous and White printed numerals. Hour and Minute Hands are Luminous filled and the sweep center Seconds Hand is unique with a Luminous Arrowhead tip.
A Steel dustshield and gasket appears between the Caseback and Movement.
10 sided Caseback is Parkerized, screws on and is stamped as shown.
Crown is Steel.
The A17A is shown on its original issue strap.
* 100% correct as found - from the estate of a retired U.S. Naval Officer.