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拍品专文
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.
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.