I wanted an early model and picked this up. It is in pretty good shape for the age and is running. I think it might be a Lady Maxim but I am not sure on that or the date. I can not find any serial # on the movement or a movement model.
Inside the case reads American Standard, has the globe, Warranted 25 years, 14K gold filled, monogram quality, (serial #) 1005313. The outside of the case is polished, no signature or info. The band looks like a replacement from the 30's.
The movement is signed Bulova W. Co, "A" A, 15 jewels, 3 adj, Swiss, O.Burki. I do not see a date stamp, model (unless it is "A"A) or serial #.
Looking forward to any info you might have on these early models.