Appears to be an FHF movement to me, but I'm not sure of the caliber. Are you absolutely sure there are no marks under the balance? Also, would you mind posting the length and width measurements? Any information would be helpful
I think it is an early version of this movement, there is a large variation on this movement, and the family went by a few different names. But the over all layout and bridge placements are an exact match,
Thanks for all the info. I took a screenshot of the movement only. The watch was on eBay and the face looks very similar to a Universal Geneve and Zenith piece from 1937 so I wanted to know what it was. Unfortunately I can’t read the name on the dial.