Great example

 

My father served in the US Army signal Corp during WWII.
Don’t know of any watch but he was issued a rifle and a typewriter.

 

Now the proper WW1 era style strap

 

Damn, I haven't got anything from this period and this looks so nice! This forum is so dangerous Oh, and DIBS!!

 

Very nice combo @river rat .

Is that one of David Boettcher's straps?

 

Yes it is I own a few of his straps.

 

Now if any one wants a great strap for there trench watch and even saw he made a two piece open end strap that mite look cool on a Omega 53 or my issued Czech Longines I just mite try one on them.
http://www.vintagewatchstraps.com/index.php