Important Modern & Vintage Timepieces

New York, Dec 08, 2010

LOT 121

GreubeL Forsey - White Gold - Double Tourbillon 30° Vision Greubel Forsey, La Chaux-de-Fonds, Swiss, Inventor Watchmakers, ?Double Tourbillon 30° Vision,? No. 61, movement No. 0622, case No. 00 610. Made in 2005, sold August 18th, 2006. Extremely fine and rare, important, heavy, water-resistant, 18K white gold wristwatch with 30° inclined visible inner one minute tourbillon regulator, visible outer four-minutes tourbillon regulator with four minutes rotation indicator, twin barrels, 72-hour power reserve and an 18K white gold Greubel Forsey double deployant clasp. Accompanied by the original wooden suede lined box with beveled glass window, very detailed literature, guarantee, pouch, white gloves and a spare strap.

USD 150,000 - 200,000

CHF 150,000 - 200,000 / EUR 110,000 - 145,000

Sold: USD 160,000

C. Three-body, solid, polished and brushed, stepped bezel, 3 dimensional, variable geometry-shaped lugs, spiral of infinity hand-engraved decorated band, transparent case back with 6 screws, convex sapphire crystals. d. Silvered 18K gold secured with four blued steel screws, applied white gold graduated Roman numerals and baton indexes, subsidiary dial for the seconds at 9, power-reserve indication at 3, four minute tourbillon indication between 5 and 7, outer minute division with every five Arabic numerals, aperture for the tourbillions. Blued steel skeletonized hands, flame-blued polished steel four minute fancy four-armed arrow hand on the tourbillon cage. m. Cal. GF02, frosted nickel silver finished in ?jade gold,? 39 jewels, lateral lever escapement, inner 30° inclined one-minute tourbillon, three-arm monometallic balance with white gold mean time screws beating at 21.600 oscillations per hour, self-compensating balance spring with Phillips terminal curve, outer four minute tourbillion under a polished conical hand-finished bridge. Dial, case and movement signed. Diam. 43.5 mm. Thickness 16 mm.


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Grading System
Grade:
Case: 2

Very good
Movement: 1*

As new

Overhaul recommended, at buyer's expense
Dial: 1-01

As new

HANDS Original

Notes

Greubel Forsey In 1999, after working together for nearly 20 years, Robert Greubel and Stephen Forsey joined forces and began developing a new generation of tourbillons specifically designed to improve timekeeping in mechanical watches. In 2004, they unveiled Greubel Forsey and released their Double Tourbillon 30° after four years of research and development. The Double Tourbillon 30° features a tourbillon within a tourbillon, a technical milestone in watchmaking history. A one minute tourbillon carriage rotates inside a larger four minute carriage inclined at a 30° angle, giving the watch its name. The main characteristic of their innovative design is the 30° inclination of the interior cage rotation axis which creates optimal conditions for the balance wheel. In this premier construction, the double off-set tourbillons continually compensate for gravity-induced errors on the oscillator in all positions, allowing for superior chronometric performance. The Double Tourbillon 30° features an open dial allowing the innovative double-axel tourbillon mechanism to be viewed and appreciated.