Swiss watchmaker Greubel Forsey is known for making extremely complicated high-end watches that push the boundaries of what?s horologically possible to unthinkable levels. Back in 2013, the Greubel Forsey GMT timepiece originally debuted with its spectacular multi-layer, three-dimensional layout, and the rotating globe, which intrigued even the most discerning watch connoisseur. The watchmaker has now revealed a new version of the masterpiece at the 2019 Baselworld which combines quadruple tourbillon with the GMT complication. You may ask what?s a quadruple tourbillion" Well, the watchmaker equipped the timepiece with two double tourbillons. For each of the paired tourbillons, the inner cage is set at a 30° angle and rotates around once per minute, while the outer cage is upright and rotates once every four minutes. A differential between the two pairs averages out the timing to make the timepiece as accurate as possible. Just to tell you how complicated it is, the quadruple tourbillion uses a whopping 805 parts.
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The multi-layered architecture of the watch is simply fantastic to look at. The main time display is located between 1 and 2 o?clock which also has the 72-hour power reserve indicator built into it. At 4 o?clock is the running seconds and the second time zone display. The most noticeable element of the dial, however, is the miniature globe, asymmetrically located between 8 and 9 o?clock. Around the equator is the fixed 24-hour ring t...