This Bulova has the Omega mark so that tells me it's 1930 or 1940. The 10AE movement shows courtesy of Dr. Ranfft from 1929-1940. I'm thinking it falls into the Albert family. It's too bad that the mainspring is broken because everything else seems to be operating properly. Nice balance too. Thanks for checking this out for me.
I changed my mind. I'm thinking this may be an Ambassador. I have an Ambassador B that looks the same except the one I'm posting has a little art deco on the side of the case where the "B" is a smooth case.
Nice watch, one of my preferred case styles from the late 30's - early 40's. It's a
1940 Ambassador "D"
Like this one. Yours appears to have a replaced minute hand.
Awesome! Thanks neetstuf-4-u!
1940 Bulova Ambassador D is a match. Hopefully you can get it running again. The mainsprings are fairly easy to find and not too expensive.
Thanks JimDon!
This watch could be one of two models, the Lone Eagle of the Ambassador.
The Panel may need to review all the entries we have to confirm the current IDs.
From what I can tell, the LE has a shorter lug curve than that of the Ambassador

Crystal measurements may be defining, but these two have roughly the same 24 x 18
Was there another feature I've forgotten about tat separated the two models?
In reply to This watch could be one of… by mybulova_admin
Lone Eagle has an incised ring around the lug ends and Ambassador does not.
In reply to Lone Eagle has an incised… by neetstuf-4-u
Yep and I think these are removable to adjust different bracelet widths.....but I could be wrong.
In reply to Yep and I think these are… by mybulova_admin
They are removable, but only with a jeweler's saw and a really steady hand. My black face LE shows cut marks on lug ends under magnification.
Advert shows a short curved lug with (I think) extender. I think this matches the subject watch.

Another 1941 advert front on view,

..and a 1939 Bulova Ambassador (note the difference in lug transition)
