Remembered Nubeos, Wylers, Gentas were once on the it-list but they are long gone.
It seems the common key factor is the "longevity" of the company to etch out classics, because people are confident they can be serviced after handing them down, and can sell them off relatively easily. I don't have this confidence in RMs, MB&Fs, Journes, etc because of the fear that the companies will go after the visionary founders are gone.
My take of the future Birkins:
- A big bang (yucky, but the company is looking strong on growth)
- Cartier Ballon Bleu
- any AL&S watch
- And I agree with you on the RMs and MB&Fs (Only if they are bought over by a conglomerate partially - less fear of liquidation)
Mike