Hi,
I'm interested by an Omega Constellation 168.017.
I have just a point for the model attached.
What is your opinion about the reverse of the dial watch of the "Omega" and the "Constellation" ?
This is an 168.0056, I'd guess - definitely not a 168.017. It's the later design phase of the C-Shape Constellations, hence the Omega etc. on the bottom of the dial. Completely legit. I'd recommend Desmond's blog on the topic: