The Double Tourbillon 30° is unlike conventional wristwatch tourbillon regulators. Greubel Forsey's design ensures that gravity’s effect on the watch's timing is minimized no matter how the watch is worn. The 30-degree inclined tourbillon rotates in one-minute circuits and a second tourbillon makes one circuit every four minutes. The second tourbillon spins the balance on a different axis than the inner cage. Whether the timepiece is worn on the wrist or stationary, the Double Tourbillon 30° functions somewhat like a pocket watch tourbillon. This timepiece is available in platinum with a mother of pearl dial, or 18 karat red or white gold with a silvered gold or anthracite dial. Brand: Greubel Forsey Model: Double Tourbillon 30° Reference Number: Double Tourbillon 30° Movement: Manual Winding Case Material: Platinum, White Gold, or Red Gold Case Size: 43.5mm Dial: Mother of Pearl, Silvered Gold, or Anthracite Gold Bracelet/Strap: Leather Gender: Men's Watch/Unisex Warranty: Manufacturer's Warranty Features: Power Reserve Small Seconds Tourbillon Shop other beautiful pieces in our Greubel Forsey collection For inquiries on the piece please contact: boutique@shsilver.com