Are those parts patented? If not then the independents should be producing their own clones. And if they are, mechanical watches are supposed to have a very lon

Are those parts patented? If not then the independents should be producing their own clones. And if they are, mechanical watches are supposed to have a very long service life, so they can wait for the patents to expire. Unless the watch companies are doing something actually illegal I don't see how they are doing anything wrong. Why should they be forced to help their competitors?