GREUBEL FORSEY. AN EXTREMELY FINE, IMPORTANT AND VERY RARE 18K PINK GOLD QUADRUPLE TOURBILLON ASYMMETRICAL WRISTWATCH WITH POWER RESERVE AND SPECIAL DIAL

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GREUBEL FORSEY. AN EXTREMELY FINE, IMPORTANT AND VERY RARE 18K PINK GOLD QUADRUPLE TOURBILLON ASYMMETRICAL WRISTWATCH WITH POWER RESERVE AND SPECIAL DIAL

SIGNED GREUBEL FORSEY, QUADRUPLE TOURBILLON À DIFFERENTIEL MODEL, NO. 25, CASE NO. 01 526, CIRCA 2009

Details

GREUBEL FORSEY. AN EXTREMELY FINE, IMPORTANT AND VERY RARE 18K PINK GOLD QUADRUPLE TOURBILLON ASYMMETRICAL WRISTWATCH WITH POWER RESERVE AND SPECIAL DIAL
SIGNED GREUBEL FORSEY, QUADRUPLE TOURBILLON À DIFFERENTIEL MODEL, NO. 25, CASE NO. 01 526, CIRCA 2009
Cal. GF03 frosted mechanical movement with personalised plate, 63 jewels, quadruple tourbillon regulator, inner tourbillon inclined at a 30° angle rotating once every 60 seconds, outer tourbillon rotating once every 4 minutes, twin barrels with slipping spring, black dial, applied baton numerals and red Roman XII, subsidiary dial for seconds combined with power reserve indication, asymmetrical case, glazed back secured by six screws, 18k pink gold Greubel Forsey double deployant clasp, case, dial and movement signed
43.5 mm diam.

Special Notice

Prospective purchasers are advised that several countries prohibit the importation of property containing materials from endangered species, including but not limited to coral, ivory, tortoiseshell and crocodile. Accordingly, prospective purchasers should familiarize themselves with relevant customs regulations prior to bidding if they intend to import this lot into another country.

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Lot Essay

US$330,000-500,000

With Greubel Forsey Certificate of Authenticity, Certificate de Grand Service, loupe, polishing cloth, gloves, leather wallet, fitted presentation box and outer packaging.

The groundbreaking Quadruple Tourbillon à Differential encapsulates the pioneering advances of the Greubel Forsey, boasting an impressive four separate tourbillons that are separated into two regulating organs, connected by a spherical differential which calculates median precision for the time display. Each regulating organ comprises a balance wheel oscillator placed in a cage of a first tourbillon that is inclined at 30 degrees and rotates once a minute, this mechanism is then placed within a second tourbillon that rotates every four minutes. This horological masterpiece is quipped with a 50 hour power reserve via two fast-rotating barrels that transmit their energy to the two regulating organs using the spherical differential. The construction and adjustment of these three-dimensional multi-axis whirlwinds is pure artistry in the realm of high complications.

Furthermore, this watch is fitted with a special red Roman XII numeral dial.

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