I see your point, but I think there’s a big difference between furniture and watches. Furniture designers often use several different manufacturers so it’s not unusual for the same piece to be made in different factories.
The 670/671 is a case in point – Vitra are the officially licenced manufacturers in Europe, charging the same premium as Herman Miller, but they ain’t Herman Miller!
Even a modern Herman Miller is not identical to the version the Eameses developed with them in the 1950s… 7-ply shells, plastic spacers, modern fillings etc.
If I was a Herman Miller enthusiast, then it would have to be an authentic US built Herman Miller chair. But I’m a fan of the Eamses and their design…
I think you’ve helped me talk myself out of an original! Thanks!