Any advice on service of a microtor UG101 movement

I found some posts from back in 2011 and 2012 that this movement had problems with the rotor coming lose, or not winding the spring at all. Mostly positive about the earlier UG movements but the new UG101 seem to have a few flaws and i am wondering if this has been solved because i would like to know if its worth to service one. I like these a lot.

Any members with knowledge or experience ?



Does UG still service these or has parts ? I did mail them a week ago but no reply yet.

Thanks !

And also this, does this movement have hacking function and quick date adjusting via the crown ? Can`t find any info on this, Ranfft does not have it either.