Bulova 1960 Military Issue "3818A"
Stainless Steel Case measures 40mm lug to lug x 32mm non inclusive of the Crown using Calipers.
An anti-magnetic shield and gasket appears between the Movement and Caseback.
Oversize Crown is Steel.
Decagonal Stainless Steel Caseback screws on and is stamped as shown.
N.O.S. Gemex one piece Nylon strap.