Wow! To my untrained eye it looks great. How can they sell so openly? Wouldn't tolex have taken some legal action?
It's difficult to track these guys down since most of them operate out of China. Also, if even if they manage to nail one down, a few others will pop up elsewhere. It's a lucrative business.
Having frequented forums on replicas, I have seen comparison photos where the replica looks very close to the original, but there is always something off. It's never 1:1. They have been able to do it for years, thus, nothing new.
End of the day, it's still a replica and will never feel the same as the real deal.
If you want to avoid being sold a replica, a good way would be to buy less mainstream models. I haven't seen a good Zenith replica as yet, but plenty of Rolexes and Omegas.