I have found the same thing... feels - for want of a better word - "grainy" when winding, even after a service. I've also found a problem when trying to start it after it's stopped, that as much as I shake or slow-wind it, it won't re-start until I try to set the time. Odd. This is a non-chrono with secs at 9. Never experienced this with all the Swiss ETA (or my 1 El Primero) watches that I've had, reps or genuines.
I guess it's just the nature of the beast eh ?