As you probably know, I just bought a Tauchmeister that is powered by a Miyota 8215 (not one of the ones that Wrench mentioned, I hasten to add) but a budget auto all the same and this particular movement is reputed to suffer from 'second hand stutter' when the watch is in certain positions, mainly vertical. As the hand passes the 12 mark and descends towards 6, because of the way the second hand is driven, the hand sometimes appears to miss a few beats. As it passes 6 and ascends, the weight of the hand keeps the gearing tight and it moves properly. See the vid below.
The reason for this is explained very concisely in the article linked to here...http://members.iinet.net.au/~fotoplot/invicta/invicta.html
At the moment, my Tauch isn't showing this phenomenom, and the second hand moves perfectly whatever position I hold the watch....and it is keeping perfect time compared to the quartz Apeks I also have. As mentioned in the article above, the 'stutter' does not affect accuracy, it just looks a little disconcerting if you notice it.
As to rotor noise...yes, I must admit there is a slight rotational noise coming from the watch if I hold it up to my ear, but again, in normal use on the end of my arm, you can't hear it at all.