In reply to I'm telling you man... I… by plainsmen
I'm not saying we won't find other examples, there were literally millions of these cases made over the decades, I'm just not convinced Bulova used these cases with their watches.
The NAWCC website takes a closer look at these cases here: American Watch Case Co., Ltd. (Toronto) | NAWCC Forums. My doubt stems from it being a 'gold filled' case and not solid gold. If it were soid gold I would more than likely agree, as we know Bulova commonly used other case coimpanies for their solid gold versions, but they had their own 14K GF cases, espically during this period of the late 20s. Also both this and your example have different case styles and bow.
I think it will be difficult to establish if Bulova did house their movements in an A.W.C Co case.
The safe bet is to group them in the general 'Pocket watch' category, rather than ID as a 470.