Greubel Forsey's finished inventions are the result of years of stringent development and exhaustive testing in EWT®. The first fundamental invention to graduate, the Double Tourbillon 30°, has recently been joined by the Tourbillon 24 Secondes Incliné and the new Invention Piece.
One common denominator of all Greubel Forsey's Inventions is that the complication reliably improves timekeeping precision. The timepieces are not just artistic masterpieces, but functional works of art.
The majestic ballet of the rotating cages in the Double Tourbillon 30°, coupled with the peerless quality of realization and finish, has impressed collectors since its launch in 2004. The geometry of the two tourbillons averages out positional errors ensuring superb accuracy.
The Tourbillon 24 Secondes Incliné masters positional errors using a single ultra-light tourbillon cage with high angular velocity. Cutting-edge research into the weight and strength of components and the development of an ingenious gear system were necessary in managing energy consumption and high stress.