Aside from the special colorings, the watch should be the same as your normal rugged Sinn U1 watch. Case is in very hard tegimented steel and 44mm wide. Not 100% sure, but movement is likely a Swiss ETA 2824-2 automatic with hacking seconds. The diver watch has 1000 meters of water resistance and a very nice to use rotating diver's bezel. Sinn only made about 375 of these watches. The version with the white strap was only available in Europe and Asia. The few U1 White watches that came to the US only arrived with the black rubber strap. For some odd reason, the "black/white" strap option yielded a bit of a debate among watch lovers. Many people hated the white strap. Thought perhaps it was feminine. I don't agree, I love it, and this it goes great with the all black case of the watch.
The one down-side to all the mechanical achievements is that this is not exactly a legible timepiece. You must focus to decipher the precise time... but then again, who relies on their watch for time any more?
The website covers a few important areas about the watch. First it boasts a bit about the watch, which is nice. Then it talks about the specific types of chimes and "songs" that the watch is able to produce. Recall that this is the first watch to be able to sound out the entire Westminster Carillon. You then get some details and images about the trebuchet hammers, the infernal tower (part of the sonnerie), the cool crystal gongs (really neat), and the complexity of the striking rhythm. You can see that most of this regards the sonnerie functions of the Hybris Mechanica Grande Sonnerie watch, but the fact remains that the watch has a wealth of other very cool complications. I hope that the site continues to evolve to discuss the rest of the features contained in this amazing timepiece.