Looks like American Eagle case in 1939 Ads. Check ad to validate.
Definately a 1939-1940 American Eagle per the ad below
Once again.. 1940 American Eagle
Copper and gold dial with roman numerals though? knowing Bulova its probably an A-B-C-D varient...maybe.
Here are models A and C. I wonder what B looked like?
Tentative, 2 ticks, due to lack of info.
3 Star ID here http://www.mybulova.com/watches/1940-american-eagle-4836 - same Watch.
So three ticks from me for Am Eagle unknown variant- same as link above. No ad w/ two-one Roman numeral dial? Gotta be some variant thereof, ad or not. Case for this time isn't confused w/ anything else.
I have a spare dial in pretty good shape if you need it. PM me if interested.