amanico[JLC Moderator]
404768
Benrus Type I Sterile for the US NAVY.
Just one shot of this watch which I used to own.

Sterile, because there was not writing on the dial NOR on the case back.
A pedestrian movement ( ETA ) but a strong looking military watch. A last detail, this is one of these few watches which uses Promethium as a luminous material for its hands and indices. The other watch I know using the same material is... The Blancpain Tornek Rayville.
Best,
Nicolas