Here's a shot about as rare as you'll find any for contemporary watches. The tourbillon on the left belongs to Thomas Gaumann, who's now head of movement research and development at IWC, and was the primary watchmaker on the Siderale team. The watch on the right belongs to this forum's moderator.
And who will get the one in the middle? I suspect it might end up in the IWC Museum, but that's just a guess.
