Dear Tayloreuph, your watch is an unknown since we have no ad to confirm a name. Yet there is an interesting story to tell. In 1929, Bulova introduced the Miss Liberty. A beautiful watch with 6 triangular stones like your watch. The miss Liberty came in a case shape that I call Cut Corner Tonneau shape. Although this was the model that was advertised heavily during 1929, Bulova introduced at the same time a second shape: the Tonneau shape, also with the same 6 triangular stones. This is your watch. In the engraving you see the original Cut Corner Tonneau shape coming back.In summary: in 1929 Bulova introduced one style (6 triangular stones) in two shapes (Cut Corner Tonneau and Tonneau) but advertised, and thus named only one shape: the Cut Corner Tonneau shape as Miss Liberty. In 1930, Bulova repeated this, now with the Miss America. This time the style is based on 4 "tiger teeth" shaped stones. Bulova also introduced this model in the two above mentioned shapes and advertised only one shape: the Tonneau shape with name Miss America. Since both shapes were introduced together, I call them "sister" watches. However, by lack of evidence in the form of adverts, we don't know if the sister watches were named Miss Liberty or Miss America as well. Hence I suggest "Unknown". Your watch is from 1931, the last year all 4 Misses/sister watches were sold.