Respectable Members

Generally the Omega Seamaster 120m, model reference 166 073, comes with a dark blue color dial. However, I have also seen a few with a black one.

Is there any difference in terms or rarity, desirability and the asking price, assuming other denominators being equal - condition, authenticity and originality?

Also, some of these watches have a big logo, while others have a small one, on the outside of the back-cover. Why is this so?

Thank-you.

 

I think that one was offered with a burgandy dial too. Gotta check before I swear to that though. The only difference in "rarity" is in the seller's mind as far as I know.