I experience the same problems but on two separate watches.
For the grinding, I also experienced this during winding. For my case, I just flipped the crown guard upside down and it went away. I think it was rubbing with the latch.
For the clicking sounds and skips, I still have this problem. My crown fell off during winding. After I reinistalled it I notice the problem. I now have to apply a bit pressure to avoid it from skipping during winding.