...I can't find anything with that ref. that looked like this on the internet. Does anyone know the reference number for this model? Thanks

 

Non-Constellation (I believe that it is even a non-Omega) case with dial and caseback transplant.

Did you buy it?

 

Seamaster Cosmic 2000 case?

 

Nope, I met up with seller, took the photos then told the seller I would check if it's legit.

 

I googled Cosmic 2000 and it does look a little like that

 

I'd walk away from this one.

 

Or run... looks like the day and date wheels are two different colors and fonts as well.