China has been selling cheap knock off crap forever. Rolex Corporation started a division with hired retired Police Detectives and supervisors to fight the knock off rolex epidemic in the 90s.
China was able to make fake rolexs that copied the famous rolex second hand movement. It moves steadily around the dial, where all other watchs moved tic tic tic tic tic. Everyone buying rolexs always looked at the second hand first to confirm legitimacy, hence they were flooding the US with them
A non cop friend of mine bought one for 25 bucks, I said why did you buy that garbage, he said the ladies have no clue its not legit. Back then strippers in the clubs used to look at your watch to see if it was expensive or not