1935 Doris
EDIT
I take back my original estimate since Doris differs engraving case, shape of the bezel and lugs
Missing the engraving on the verticle bars at top and bottom of case but otherwise looks like the Doris. Probably just a variant of same.
In reply to Missing the engraving on the by JP
Also looks like the crystal has a little curvature at the top and bottom on the Doris.
Hmm, I don't think it's Doris Jaroslav. Between the engraving and the dial opening I think it's different enough to no be a match. I've looked through everything and don't see a match. I'm going with Unknown for now but I wonder if it should be 1931 based on the case serial number?
In reply to Hmm, I don't think it's Doris by Geoff Baker
Case serial number is six-digit and does not necessarily correspond in this era with the year of manufacture, but I probably caught Unknown
I agree with Geoff regarding the differences, not a match to the ad.
Lisa has a 1934 version of this model that she ID'd tentatively as the "Francine" based on the crystal dimensions.
In reply to Lisa has a 1934 version of by 1955mercury
In reply to Thanks merc I look over by jabs
I don't have the 1937 catalog but I do have one listing the G-S X488 crystal and it measures 16.4 X 9.6 and its a flat rectangle.
Unknown for now.