I recently purchased two manual-wind vintage '60's calibre 3000 Lemania watches. One has the Crown logo over the name and the other no crown over "Lemania". The one with the Crown logo has a serial number stamped on the movement. The movement of the other has no serial number. I am lead to believe the "Crown" version is made to a higher standard. Is this why the movement is numbered and the other is not numbered?
All info gratefully received.
I posted this question on another board that was supposedly a "Lemania" forum and didn't received one response. Perhaps I'll do better here. I'll also post these in the "Vintage" sub-forum.