Omega Pave d'Or Authentication

Ive made a post long ago about this, but it was in terrible condition. Recently, a better one popped up but one similar issue is found. From the pictures you can see that the "De Ville" gold plaque is missing. Another thing to point out is that, I have my doubts on the crown, as the ones ive seen are all in gold and not in steel. As for the movement, that I am not sure whether it is real or not. Can anyone confirm the authenticity of it? And since the gold "De Ville" plaque was supposed to be solid gold too, how much would a non complete one like this cost?

For some more input regarding this product line:
From Omega - A Journey Through Time.


And some old brochures here:
http://www.old-omegas.com/catde76.html
No. 50

All examples I have seen have golden crowns.
😉

Here more inhouse information, including my scan in english.
https://omegaforums.net/threads/investigation-help-please.55819/

Yeah i suspected that the crown was already after market. Im not sure how much that would put down the value when the de ville plaque is also missing. The guy is asking for $571. Not sure if its an ok deal or not. I'm sorta sad that the crown isnt at least original but I really do like this series and dont know when ill see it again. Might try to bring the price down

Thanks for the insight. From what others pointed out it seems that all of em has a gold crown, so thats sort of a downer