The rotor has ceramic ball bearing, which explain the noise.
By: amanico : November 30th, 2016-21:51
As for the crown, two things. I didn't have issues pulling it, but yes, I noticed that the minute hand could move, when pushing the crown. This is not the only JLC which does that. Amvox II, and even the Reverso Septantième. As for the Lume, it should be ...