Case measueres 22mm lug to lug x 24mm non inclusive of the Crown using Calipers. Ornate Silver Dial shows Black printed numerals, Bulova signature and track. Hinged Caseback is stamped as shown. Cabochon Sapphire Crown. Sets, winds and runs.
vintage display ad Dated 1923 - as found.
Late 1923 I'm guessing, these are fun and informative.
June 1923 ad. I betcha the 155 was also for the 18k filled, like subject watch.

In reply to June 1923 ad. I betcha the by William Smith
Pretty safe bet Will!
Like you say elsewhere, ( and I was too, back in 2013!), these gold filled models will use the preceding odd numbers as an ID.
And they are all Lady Maxims too if my ideas are correct, and the theory looks sound.
I think this is actually a 155

I agree Kathy, based on the gold content.
1923 Bulova 155
Panel - thoughts?
Agreed, 25 yr. plate vs. solid gold
1923 Bulova 155
Bulova 155i s good match
FLAG !!!
By case s/n this one should be a 1922.