Nicolas,
All I can say is 2 materials of the same hardness will wear each other out. The new manufacturing process' produce a better surface finish which will help reduce friction, for how long I do not now. I will leave that to those that have the experience with such materials. Otherwise we will wait and see. My personal preference is for traditional methods of manufacture that can be mastered by a watchmaker. This to me is the ART of horology, craftsmanship! The science of horology has no boundaries or limitations such as tools or material and I also respect this side of horology for what it is. This is why I set my mechanical watches to an atomic synched radio clock. Both side of mechanical, traditional and advanced, have their place and can be respected and followed when boundaries are applied. There is nothing wrong with trying to get a mechanical device to perform the best mankind possibly can. My personal view is that moving beyond human production to computer or robot production leads to quartz and atomic and away from the art aspect. I have the same view for painting. An original design is an original design and respect can be bestowed upon the designer, be it a PP Nautilus or a John Wilde. However a poster from the gift shop at the art museum is not a work of art and does not display the same kind of craftsmanship as the original. Maybe I don't make much sense to some people but hey it is a topic that is attached to this issue of advanced research technologies and these are my pennies!
TCP