The first one I posted with the white dial is an authentic that has just been full restored, cleaned, and serviced. It's sold by a small family owned business in the UK that just restores one vintage Omega each week into the condition that you now see - obviously they do not have watches with significant wear and tear to begin with. I guess we can debate the merits of why one would buy vintage and whether the "vintage" look is important. I was attracted to the vintage Omegas because of the simple, classic desing, the signature Omega movement, and the small size (I have small wrists). With these sellers, I can get all those benefits while getting a watch that looks almost new. The second one with the blue face actually isn't as clean and does have some marks, which that picture just masks. I figure I can do some work on my end to get it cleaner. The third one with the gold bezel is sold by the same guys as the first one. Several SF members have bought from the same source and have been extremely happy, so I feel comfortable with that.