don't know about Seraphin. but for PS, I believe their Japan-made frames are still considered good. But those are made in Italy is made out of the same factory as Prada and all other brands, which means quality isn't the best.
tried to dig out the new Rivet's fit but can't find it so I have to ask here:
For those who have gotten some new Rivet fits, how do you size compare to the old fit? I recall Mike saying that if the old fit is spot on then stay the same size, if the old fit is a bit big then size down 1. Also, how do you size the new fit compare to the Walts and Driggs? Do you size the same?