Here is my 992B Hamilton in a bar over crown no 10 gold filled case,serial no C6408 made in 1942,21 jewel,adjusted to temp and 6 position,lever set and I like the crown on this model case.

I have this same watch (model 10 992B) with serial number 63,xxx and it originally had the same dial as yours-see my post immediately below-on the 082 dials. I replaced the dial with a Montgomery figuring the military type 082 was a swap or a replacement. but looking at yours along with Lin's input figure that these watches would likely be factory originals. I wish I had my 082 dial back!

I would just like to say these photos are beautiful.