The reference you seek is not written Pugwash, nor is there a statute which implicates that buyers of counterfeit watches oversees are subject to counterfeiting laws. Only sellers. US law is often a vast grey area when it comes to such matters, except for narcotics and other 'evils'. My statement is based on conversations with US customs employees. If you want to split hairs, I am sure they can find a way to prosecute you for buying counterfeit watches, however there is NO precedent. It is simply way below their radar and there is no need to alarm anyone who is in the US and wants to buy a watch from China but will not out of fear for being sent to the pen, or subjected to a heavy fine. It won't happen.