My brand new Sinn 356 arrived today with what I think is a factory defect: the chrono hand is sweeping erratically. I wanted to get your opinions about this before I return the watch. You can see the chrono in action in the below video (can't have links because I'm a new member): www[dot]youtube[dot]com/watch?v=u1xKQCkszvM. The second hand ticks at almost 3-4 ticks per second between 4 and 6 markers.
What do you think? Is this a normal sweep because I am being told by the AD that it is?