As near as I can determine, the 17AA, and its predecessor, the 17AN, along with the 17A, 17R, 17TR, 17AB, 17H and 17V, are all in house Bulova movts, made in Switzerland. There is no evidence that I can find of them being an adapted ebauche, and would mean Bulova was executing them in their entirety. This is fairly unusual for the time in the young company's history, and predates the later in house movts and American made movts. I wish we knew more about the setup and running of the Bulova Swiss factory, it may be that Bulova acquired some defunct tooling to allow the easy adoption of these larger movts, made in house.
There are no other marks on the box. I believe what we have here is an earlier watch, presented in 1930. I have adjusted the date to reflect this, and we may find that even that is off by a few years.