This could be the ISOBEL model with the striped dial varient, found one very similar in the adverts with standard dial but it looks blurred so not sure, slight differences I think. 2 Diamonds, 4 blue stones, stunning deco etchings!
Ad Dated Dec 1930 http://www.mybulova.com/sites/default/files/vintage_ads/bulova-ad-13-De…
"MINERVA" w Sapphires.
The " Minerva " looks to be a close match with the exception of the dial having a minute track and the sapphires seem to have a different cut than the subject watch. Jewel count is right, it came with simulated Emeralds or Sapphires and 2 diamonds. I'm of the mind someone tried to clean the dial and lost the register and the cut on the sapphires is an artist enhancing the size. I'm kinda with Mark on "Minerva" for now.