Real or Fake: Vintage Seamaster DeVille

Hi there, I’m a newbie and looking to purchase my first vintage Omega. Can anyone help to verify if this is real or not? It seems odd to me that there are no minute marks. Crown looks bigger too compared to other photos I’ve seen out there.

It's not so easy without the reference.
I guess it's the Omega Seamaster Automatic ref 14765 considering the caseback but also some manual version of the seamaser DeVille very similar.
In my opinion
1- the second hands is not correct (too short)
2- the dial seems from another watch
3- no minutes marks... Really odd.
4- crown seems good and should be with female stem attached