
I've had a number of Orbita winders. I've never had one that in any way damaged a watch. To me they work well and I'd be surprised if you end up being disappointed. I will say, however, that after a while I switched to a different manufacturer because I wanted a model that "stacked" in a safe comfortably. As a result I've pretty much switched to Swiss Kubik winders ... except for the Orbita Voyager which is a pretty good travel case for those who want a winder at their destination.
I visited the PP headquarters in Geneva and asked this exact question to a craftsman in the minute repeater room. After a few seconds of consideration the answer I was given was:
If a watch isn't worn for an extended duration and would otherwise sit, it's fine to use a winder. If there isn't an extended sedentary period and you don't mind resetting the watch, a winder is probably not necessary.