Bulova 1944 Military Issue

Greetings All,

I am not a watch expert, so please excuse novice comments or questions. I do own and wear about a dozen or so casual analog watches, including two Bulovas. I intend to learn more and pick up a few more specific timepieces along the way, but my interests tend to lie closer to military history than to time pieces, per se. 

I purchased this watch about a year ago, online, from a shop in Norwich, UK. Seller did not know its history, beyond that it had come to her from a local household estate sale. I bought it, believing it to be the OF variant of the U.S. Army Ordnance Department issued watch, which is what my grandfather and great-uncle would have been issued in 1944. I could see that it had either an unusual period-correct military strap, or possibly a post-war replacement.

I am intrigued by the strap. I believe that these watches were issued minus the strap, which would then be issued or procured separately. The watch dates to 1944, unless I am mistaken. Some early war watches had pigskin straps with the metal tabs like this one, and the color is a perfect match for Army leather. However, by 1944, I had thought that most if not all were being worn with the cloth straps. It's purely speculation, but perhaps the farther you were away from the front lines, and the dressier the uniform you were required to wear day-to-day, the more likely you would have been to wear the pigskin strap versus the olive drab cloth. There were a lot of American air bases all around Norwich in 1944-45. The buckle is stamped WRISTLAW, which I believe was a British maker. I don't know if WRISTLAW was ever contracted to provide straps to the U.S. army. I tend to doubt it, but I don't know. 

This piece was being worn on a very small wrist. When adjusted to the setting it has been worn at, this strap fits my wife's very small wrist perfectly. I do not know if female soldiers, such as WAAC, would have been issued this model of Bulova watch, or if there was a separate women's issue Army watch. I would not suspect this model to have been worn by air crew, (they had their own model), but I guess it is possible.

One of the two pins securing the strap to the case has been replaced by a crudely bent piece of stiff wire.

I have made no attempt to wind or test the watch for functionality, and probably will not before taking it to have it serviced. I see some slot wear on two of the movement screws. Definitely not my doing!

What do the photos tell the Bulova experts here?

Thanks.