Circle date code 1934. No Ads no examples. 6AB (poor stamping, but definitely a 6AB) movement listed in database as 1935 only. Here is a 1934 example for you. Bulova stamped on edge of the case, nothing but jewelers marks on the inside, no patent date just blank. Dust cover missing but it ticks. If not the original braclet it is very old.
Before you ask, lol. The bracelet is marked A&Z Azium Pat #1700489
Unknown for me.
Another I feel like I have seen so many time but can’t find an ad. It is a nice one.
Unknown for now.
1934 Bulova Unknown

This watch coud be tentatively as the MILLICENT, based on the G-S Crystal Catalogue 1937, which lists this model as the only one taking this crystal.
Watchophilia https://www.watchophilia.com/photogallery/bulovas-1930-1939/a1932-millicent/
The name is also listed on the 1935 SWARTCHILD & Co. Catalog.
Would be good to see a photo reference to the crystal. We tend to be wary of IDing on just a crystal, especially without a photo of the associated packet.
This 1932 ad confirms this as a Millicent. 1934 Bulova Millicent.

Agreed... the Millicent.