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Lot Essay
Greubel Forsey’s Double Tourbillon 30°
Celebrated as Greubel Forsey's '1st fundamental invention', the Double Tourbillon 30°, so-called because of the angle that links the two mobile cages is a patented double tourbillon system representing a decisive technical advance and milestone in watchmaking history which took more than four years of research and development to perfect. Inside the exterior tourbillon which turns in a four-minute period, an interior tourbillon, smaller in size and inclined at 30 degrees in relation to the first cage, revolves in 60 seconds. To guarantee even more perfect time-keeping, this revolutionary complication permanently compensates the rate of gravity-related errors in all positions. Patented by Abraham Louis Breguet in 1801, the tourbillon is a device created to compensate the effects of gravity on the movement. This is achieved by averaging out the variations of rates for a calibre in different positions by rotating the entire escapement, balance, spring, lever and escape wheel, through 360 degrees over a fixed period of time.
Greubel Forsey Robert Greubel and Stephen Forsey’s working relationship of over 20 years is founded on their shared technical creativity and quest for perfection. The two watchmakers are fabled for their exceptional and avant-garde horology, combining highly complicated mechanical functions with uncompromisingly provocative styling concepts.
Robert Greubel and Stephen Forsey have become legends in the world of modern independent watchmaking. Working together since 1992, when they were developing complicated movements for Renaud & Papi, Greubel and Forsey decided to branch out on their own in 1999, setting up as the independents, CompliTime Greubel, la Neuveville and Bureau d’Etude et Prototype, le Locle, respectively. From this moment forward, they are focused on designing a new generation of tourbillons specifically developed to improve the timekeeping of the mechanical watch.
Celebrated as Greubel Forsey's '1st fundamental invention', the Double Tourbillon 30°, so-called because of the angle that links the two mobile cages is a patented double tourbillon system representing a decisive technical advance and milestone in watchmaking history which took more than four years of research and development to perfect. Inside the exterior tourbillon which turns in a four-minute period, an interior tourbillon, smaller in size and inclined at 30 degrees in relation to the first cage, revolves in 60 seconds. To guarantee even more perfect time-keeping, this revolutionary complication permanently compensates the rate of gravity-related errors in all positions. Patented by Abraham Louis Breguet in 1801, the tourbillon is a device created to compensate the effects of gravity on the movement. This is achieved by averaging out the variations of rates for a calibre in different positions by rotating the entire escapement, balance, spring, lever and escape wheel, through 360 degrees over a fixed period of time.
Greubel Forsey Robert Greubel and Stephen Forsey’s working relationship of over 20 years is founded on their shared technical creativity and quest for perfection. The two watchmakers are fabled for their exceptional and avant-garde horology, combining highly complicated mechanical functions with uncompromisingly provocative styling concepts.
Robert Greubel and Stephen Forsey have become legends in the world of modern independent watchmaking. Working together since 1992, when they were developing complicated movements for Renaud & Papi, Greubel and Forsey decided to branch out on their own in 1999, setting up as the independents, CompliTime Greubel, la Neuveville and Bureau d’Etude et Prototype, le Locle, respectively. From this moment forward, they are focused on designing a new generation of tourbillons specifically developed to improve the timekeeping of the mechanical watch.