I have a genuine mid size electrice blue Seamaster professional watch, just like the review of the full size watch here: http://www.rolexreferencepage.com/seamaster/bluesmp.html
It is perfect, and by that I mean the dial hands and crystal are totally flawless. Not a mark or spec of anything that should not be there, even under a loupe...
Replicas do not even come close to that level of craftsmanship. You would need to be longsighted, needing reading glasses not to be able to see the quality difference
I must add that I would never buy a quartz watch, rep or genuine. It's all about the mechanical automatic movements for me......
Cheers!