As mentioned here: http://www.mybulova.com/watches/1927-unknown-6987?page=1
I recently watched an excellent Webinar hosted by the NAWCC guest wrist watch curator, Adam R. Harris.
In that Webinar, among the many interesting and unusual watches, this one especially caught my eye, and my full attention.
"Very unusual" you may think, and it is. This watch is wound automatically by the movement of the whole of the watch movement/dial inside the case! These slide up and down, thus winding the watch.
What is more unusual is the fact that it is actually a Bulova watch and movement, the dial has been refinished with an incorrect name!
Adam mentions this is so, and his regret in not buying it when he had the chance is also mentioned during his display.
What is further facinating is that this is not the only Bulova 1930's auto model he has seen, there is another that uses another unusual method of winding, almost exactly the same as the one in the below Webinar snippet. This one uses a "pendulum" system that moves side to side, and invented by Frey.
Amazing I think you will agree, and something to look out for!
References, photographs, Adam Harris.