I'd have to say 1937 Crocket gets my confimation of ID.
http://www.mybulova.com/vintage-bulova-watch-ads?page=3 Ad# 4
American Clipper. Crockett curved, rather than angular.
Crockett has all 12 numbers on dial.
Clipper's don't seem to have the engraved bezel. The dials, hmmm, that requires further thought.
American Clipper F. http://www.mybulova.com/sites/default/files/vintage_ads/bulova-ad-1938-8.jpg This one has the engraved bezel. The dial has been redone and the track is off.
I agree with Jay...American Clipper "F". What is the serial number on the case?
Agree with American Clipper "F". Bracelet makes no difference to variant no. in this case, ads from this year have shown the AC available with leather or link band.
The "F" variant of is on a Bracelet.
* I have not had time to fully research this matter but the 'AMERICAN CLIPPER' "B" could possibly be the White Dialed version of this Model with an engraved bezel on a Leather strap.
Mark, do you have an advert for the "B" variant?
Both the standard American Clipper and the "F" variant came with the same bracelet.
This model (based on the case engraving) it's the "F" variant.
American Clipper "F" gets my vote.