Second edition for the Histoire de Tourbillon collection, launched by Harry Winston in 2009, with limited-edition pieces offering various innovative interpretations of the most popular complication among enthusiasts. Histoire de Tourbillon 2 (produced in 20 pieces) features a flying bi-axial tourbillon with two concentric cages to striking effect. Housed inside a large dome that makes one revolution in 120 seconds, the inner cage carrying the balance, balance-spring and escapement makes one complete revolution in 40 seconds. The hour display, with AM and PM affixes, is off-centre at 2 o'clock, while the minute display is at 6 o'clock. È equipped with a hand-wound mechanical movement housed in a white gold case.
