I've been eyeing a Sinn for quite some time now--I fancy the Spacelab models in particular--and had some questions for anyone with some first-hand experience.
Specifically, I'm wrestling with the age-old debate between picking up a vintage bargain or holding out for a lightly used newer model with Sinn's in-house modified 7750 movement.
The Movement Issue: the Lemania 5100 is quite highly regarded for its ruggedness and durability, but repair costs can be nasty and even the least used examples of these are 10+ years old now. The SZ01/02 are theoretically a lot less frightening for being based on the widely known, eminently repairable 7750 and for having considerably less mileage on them. (That said, the collector in me still feels drawn to the 5100 as I don't yet own a watch with this iconic movement.)
The PVD Issue: I can't help but being drawn to the all black tactical look of these over the more utilitarian stainless/titanium versions. From what I gather, vintage pieces tend to exhibit roughly the same amount of wear as the classic 70s Porsche Design chronos and their variants--that is, the PVD coating is often considerably worn off in many areas, especially on the crown/pushers and bracelet. Conversely, when I visited the outlet store in Frankfurt last year, both sales-dudes were wearing contemporary PVD watches (a U1 with the vintage lume and, I think, an 856) and they were spotless. As any good sales-dude would have done, they were quick to vaunt the merits of tegimentation, assuring me that today's finishes were much more resilient than those of decades past. (Thing is, all science aside, this is a claim that can only truly be verified with several years of wear.)
In a way, I'd rather own an imperfect vintage watch and not have to worry about being the one to put that always-traumatic first scar on a brand new one, but if the new PVD stuff is as robust as it's made out to be--and it won't wear down from sleeve rub, desk diving, incidental knocks against dull edges and smooth surfaces--then maybe I'd shell out a bit more for a shiny new thing.
In any case, I'd love to hear from anyone who has thoughts about these very pressing First World Concerns. ;)