Rotating is a nice smooth motion, compared to retrograde or jumping motions. Hands that fly back every minute, day, week, month are more troublesome. Energy has to be stored and the released, then absorbed on the other end when the hand stops. Rotating (in one direction) does not exert such forces.
I’m thinking of some GG or Roger DuBuis models now.
Chiming and repeating watches add extra mechanisms that store energy, count intervals, release the energy into a hammer, beat onto a chime, then reset.
Watchmakers have enough trouble fixing regular watches much less these quirky ones. Thus they don’t want their apprentice buying trouble and wanting it fixed for free, or asking how to fix it.
Cazalea