Greubel Forsey GMT Quadruple Tourbillon watch - very cool, very expensive.

Greubel Forsey had to develop an entirely new movement over an approximate three-and-a-half year period to bring these two remarkable timekeeping mechanisms together. The manually-winding movement is comprised of 805 parts with three fast-rotating barrels. The brand has filed for three patents for this new caliber. Just like with the watch’s direct predecessors, a three-dimensional dial and movement architecture is on full display. Starting in the upper-right corner of the dial, the primary timekeeping display (hours/minutes) is the tallest point of the watch itself. On the lower part of the dial, a power-reserve display indicates how much of the 72-hour running autonomy remains; remarkably, the Quadruple Tourbillon GMT boasts the brand’s longest-running power reserve found in its 15-year history. At the traditional 4 o’clock spot, a coaxial small seconds and second time zone display are located, with the second time zone being adjustable in one-hour increments by means of a pusher that is directly flush with the case itself. Between the 8 and 9 o’clock zone is the GMT function that is visible courtesy of the oversize, three-dimensional globe. On either side of the Earth model are the dueling double tourbillons, each featuring an open and transparent construction, secured by black polished bridges and adorned with gold chatons as well as hand-polished beveling and countersinks.

The back of the watch is almost as interesting as the front.

The Greubel Forsey Quadruple Tourbillon is limited to 66 total pieces with the first run of 11 watches confirmed to be in white gold. Other precious metal case materials will follow. The price is available upon request - and if you have to ask....