Case measures 33.5mm lug to lug X 22mm non-inclusive of the crown using calipers
'Snap fit' caseback is stamped Bulova and American Standard along with the 1927 patent date and case serial number.
The movement is housed in a block with dust shield and retaining ring.
The dial shows radium numerals and the hands are incorrect imo.
Vinatge ad is dated 1926.
In reply to Alex, it's hard to tell from… by mybulova_admin
No I don’t and I am travelling the next two weeks. We can just check if any of the Windsor, Suzanne (or Magnolia, name change of Susanne) listed on this website have a side view.
More of a difference in the width than in the heigth.
Thanks.
I still do not see the curvature of the bezel in the 1926 'WINDSOR' ad.
I'm at 'UNKNOWN' FOR NOW.
In reply to Thanks. I still do not see… by FifthAvenueRes…
Fifth,
Looke the open "9" and the base of the 6 on the picture Alex posted..... i think you got the "male" version.
Fifth, do you have a true side view of the watch?
I'm leaning towards a Windsor.
In reply to Fifth, do you have a true… by mybulova_admin
Certainly,
The case has a curved bezel, a feature I am not seeing in the 1926 'WINDSOR' ad
'SUZANNE' vs 'WINDSOR' bezel illustrations.
The 1926 'WINDSOR' appears to be more like this case - https://www.mybulova.com/watches/1926-dictator-3404
...with a flat bezel
It's possible this model evolved in 1927 to a curved bezel case, but We have no evidence of that.
Fifth I'm thinking it's just a case (excuse the pun) of perspective and seeing from the slightest of angles.
Overlaying your case onto the 1927 Bulova Windsor advert is a near match. Allowing for artistic licence and variation is print and photo ratios.

I would agree Stephen, it doesn't get any better than that.
Comparing the profile of the subject watch to a recently added 1929 'WINDSOR' the case profiles are the same, note the scroll work in the engraving pattern at the crown.
I'll update the display ad to reflect 'WINDSOR'
Have ID'd accordingly and updated from a ladies to a mens watch.