Greubel Forsey Quadruple Tourbillon

About this reference

The Greubel Forsey Quadruple Tourbillon in platinum, powered by the 534-component caliber GF03, was introduced in 2008 and remained a cornerstone of the brand’s production for over a decade. Collectors prioritize this reference for its mechanical complexity, featuring two autonomous double tourbillons connected by a spherical differential to average their timing rates. The 43.5mm platinum case includes a lateral sapphire window to view the escapements. Production was strictly limited, often cited at 30 pieces for the initial platinum edition. On the secondary market, these timepieces typically command prices between $300,000 and $450,000, depending on provenance and condition. A notable auction result occurred at Christie’s in 2021, where a platinum example sold for approximately $345,000. This reference is significant for being the brand’s second fundamental invention, establishing their reputation for multi-axis tourbillon chronometry within the independent watchmaking sector.