Case measures 28mm lug to lug x 24 mm non inclusive of the Crown using Calipers.
Ornate Silver Dial shows Black printed Numerals, Bulova signature and track.
Hand(s) are Modern style.
Hinged 'setback' Case is stamped as shown.
N.O.S. Glass.
FYI I'm finding some newspaper ads which use model numbers appearing a year or two after other ads showing "names" for the same watch. I think some advertisers are using older copy for the ads with model numbers vs "names". Some of these conflicting ads use the exact same watch graphic, so I would say if we have an ad using a model name predating the same watch advertised as a model number, we go with the name of the earliest ad. I'm double checking the Minerva above, to see if we have this "issue".
I'm good with Minerva for subject watch, although subject watch is rolled gold plate vs. gold filled as in the ad. Nice ad Bobbee!
Agree with ID, admin's new 1927 ad states 'gold filled' for the Minerva.
Also as stated in other watch threads, the ads are most likely depicting the solid gold versions of each model, and small differences in engraving/enamelling could be a visual identification aid for salesmen, so that solid gold models were not sold as plate, or vice-versa.
In reply to Agree with ID, admin's new by bobbee
So we have a ladies watch dated to 1927 w/ both case SN beginning with "7" and Square date symbol on movement, which is hallmarked to include "rolled gold plate".
I doubt something as simple as Rolled Gold Plate would not make this a Minerva, but I'm pretty sure all our ads for Minerva state filled or solid.