So - I tried on an old Franck Muller from the 90's and it wore surprisingly great and looked more interesting than I had expected.

Anyone have an advice for the vintage side of Franck Muller?

Best I can tell the story goes that the early 90's and very early 00's stuff (e.g. before he departed) are the place to start. Might also be that the early stuff was gold and platinum and the brand started to go sideways when they were cranking out stainless cases and lowering quality so maybe stick with WG or platinum (??)

As far as aesthetics, for me it has to be at least mildly complicated. Those are the interesting ones and part of the reason is they push the numbers to the side.

Does anyone have some words of wisdom on these, experience, stories from the 90's, servicing issues to watch out for, what years to focus on before things went sideways, red flags, etc. etc. etc.

Anyone have one or know someone who wants to move something like this? I don't want to spend too much but, on the flip side, want to do it right the first time. Best I can tell if you like the look there are some of these that are under-appreciated.