I have long hankered after a Sinn, and last year bought a Sinn 140A. It is a gorgeous watch with high quality case finishing, a highly legible Lemania 5012-type display and some very neat features, including waterproof chrono pushers. But for some reason I never used it for swimming and despite the scratch resistant Tegimented steel case, it didn't get used as much as it might do for anything else, possibly because I had my trusty Fortis B-42 Cosmonaut Chrono, complete with the Lemania 5100 movement and lightweight titanium case. So I was probably a bit susceptible when I received an unsolicited approach from someone on another forum who was looking for one.
The Sinn 140A is now passed on, but I suspect that another Sinn model may be along before too long. I had some design input into the EZM10 when that was under development, a dozen years ago, and despite its very similar functionality to the Fortis, and its Ti case, I would like to try one some time. And then there is the Sinn EZM1, another I've been thinking of for at least a decade, or perhaps the EZM1.1 remake. Unfortunately though, they don't seem to be getting any cheaper, but, business difficulties in the current year permitting, I hope to pick one of them up in the next few months.
But it's brand with some superb watches. In fact, if I was told I could have, say, a three watch collection but could choose only the current models from one brand, it's a toss-up as to whether I'd choose Sinn or Omega.