Quadruple Tourbillon

Greubel Forsey

Greubel Forsey : Le Quadruple Tourbillon à différentiel sphérique

Each of the four tourbillons in the Quadruple Tourbillon independently contributes to an exceptional level of accuracy. A spherical differential transmits the combined precision of the two autonomous oscillators, each built according to the same principle as for the Double Tourbillon 30°, and therefore doubles the chronometric performance of the two regulating organs.

This also minimises the slightest variations in the oscillators' performance.