Quadruple Tourbillon
The Quadruple Tourbillon uses two double-tourbillons - four tourbillon cages in total - working independently to average out and minimize gravitationally induced errors on the balance. A spherical differential connects the four rotating carriages, distributing torque between two wheels rotating at different speeds.
The Quadruple Tourbillon Secret, presented in 2012, houses a modified Quadruple Tourbillon ‘hidden’ under a full dial. The movement can be seen through the display back and the two double tourbillon systems – with four tourbillons in all - are configured head-to-tail and are coupled by a spherical differential.
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