While I do see an element or two of the Debutante series, what we have as evidence in the ads seems to only show an engraved bezel version. This one does have engarving on the sides, but it is minimal in comparison.
If the dial was polished at some point, it would have easily stripped off the numerals, so I am betting the original finish is this polished one. In the close up, it does look a bit cloudy and spotty, but appears less so under normal light and from a distance.
Despite my suspicions that the dial was originally Radium, there is absolutely no trace of Radioactivity anywhere, not even the hands. Normally I can even find spikes in Radiation on the movt if it has had a Radium dial, but here there is nothing.
I'd have to agree with unknown at this point as well, and Alex has a good point with the 1927 signature on the case.
EDIT: Also, anybody know what patent (1924) they are referring to in the signature? I've seen the patent change to '1927' and I used to think maybe it referred to the dust cover. It seems odd that a 1928 watch wouldn't have the '27 patent