I scrolled right on by this guy the other day without more than a passing glance. About ten watches later in the auctions I saw this exact same model/dial combo reading solid gold! I scrolled back and low and behold in a blurry picture you could just make out 14K SOLID GOLD under the Bulova. I clicked the BIN as fast as I could! Haha.... Case is 41mm in diameter, the overall weight of the watch is 41 grams. Bulova Pocket Watch. I don't know the roman numeral dial, and I think the only ad's we have from this era for a pocket would be the Buckingham?
I guess it could be just a generic "Pocket Watch". This advertisement from 1947 looks to match this case, and it does talk to 17 jewels.

I´m good with "Pocket watch" even if we do not find the corresponding advert
It seems like you're about to become the Bulova Pocket watch expert plains, I'll wait for you to find a name for this gem. Until then...
1947 Bulova Pocket Watch
PS - I love that tablecloth
I'm unable to find a name to go with this one; Pocket Watch id for now.
Bulova Pocket Watch for now.