I believe this is a Miss Liberty like this one https://www.mybulova.com/watches/1929-unknown-5394
The case is different than the ads for Miss Liberty like this one https://www.mybulova.com/watches/1929-miss-liberty-6170 it does not have the cut in corners but rather it is like the Miss American case that has etched corners. I have seen Miss Americas that have had cut corners instead of etched. But in both cases the case etching is correct for each model. So my thought is that there was an occasion or two where they swapped cases on these models. In my opinion they would still be these models and not a different model because everything else is correct. We will see what the other panel members think : )
Lovely example by the way, love love love the original band!! The watch is gold filled and I believe the band would be as well.
1931 Bulova Miss Liberty (tenative)