Here's my one-and-only military watch. 1942 Elgin, 15-j, hack setting,

Elgin back cover, dust cover, and movement

Here's the outside of the back cover.

A nice example from about 1943. As you know, they were issued to the U.S. Army Air Corps. The strap issued with these was a one-piece cloth type.

Thanks for the post.

Best regards,
Greg