Still not convinced by the crown
This is the company that got out a smartphone with a single button, and everybody called them crazy, and it was incredibly successful. What the heck are they doing adding a crown?? How about just using the touch screen?
Oh, and keeping the time within 50 milliseconds: I consider myself a freak because I want my wristwatch to be within 5 seconds of the exact time… But I don't really see why I would need a hundredfold increase in precision.
So far, it feels like the best use case is a remote control for the phone.