I said this in the other thread - there may be something hinky with that dial, because you're right, the black one should not have applied markers (the blue one does though, so maybe those are bad pics of the blue, who knows)
but - one of those has a gen cal 9300 movement in it, and a thinner case. so that much at least is not rep in those photos.
of these reps, the blue has the more accurate dial because of the markers OP, but the blue is supposed to be titanium and this is steel. Omega's titanium is not nearly as dark as like a Pelagos, so the look isn't horribly off as it could be, but it will weigh almost twice as much as it should.