I don't see a model like this in the database. Going through the loose ads I did find Jim found an ad in 2019 for the 1946 "American Clipper". It's 17 Jewel like this model.
About halfway down the link below: Amarillo Daily News (Amarillo, Texas) · 2 May 1946 https://mybulova.com/forums/new-bulova-watch-ads-1940-1949?page=5
In reply to ...or Bulova Pacemaker by mybulova_admin
My vote is Pacemaker, by date. I believe, based on the 1948 ad showing the "nubs" on lugs just like War Hawk that this is a watch that was renamed after the end of WWII. In 1946 it was War Hawk, and renamed Pacemaker in 1947 or '48. Just my 2 cents worth.
1948 Pacemaker
In reply to On the Pacemaker advert, I'm… by mybulova_admin
If you look at the top 1948 ad closely. the nubs show on the top two lugs, as they do in the 1946 War Hawk ad referenced in that listing. The second ad above doesn't appear to show them. It almost looks like that ad is the same drawing as the '46 WHawk touched up.