Bulova 1933 Envoy
The first tonneau design Bulova of the 1930s. Notice the familiar diamond & ball engraving pattern used on the 1931 Lone Eagle III & 1932/1933 President. Also interesting to note is the smooth sides on the case, no more opposing arrows. This watch must be pretty scarce, it's the first one I have seen, other than the ad.
The ads are dated 1934.