If you are going to buy a whole bunch of fake Rolex watches, I would advise you to proceed with caution.
Buying one or even 2 fake Rolexes probably is no big deal, but if you buy a bunch. You should be very careful going through custom if you reside in the US.
If you claim the watches, it might get confiscated. It you do not report and the custom finds out, I heard it is a very hefty fine.