I just received a Ceramic Planet Ocean from a TD last Friday (4/11). This is my 3rd watch from the same dealer, and the third watch that has had a problem. On this particular model, the glass back allows you to observe the movement and rotor. I started to notice that the watch began to stop while wearing it throughout the day. It manually winds fine. I took it off and started turning it in my hand, and noticed that the rotor would get "stuck" and not turn unless I shook the watch hard enough, or tapped on the back glass to get it to move. I also noticed that I can "unstick" the rotor if I unscrew the crown and gently nudge the winder, ever so slightly. Any ideas what might be wrong here? Things I should try?