World's first Central Tourbillon movement. Self-winding movement with rhodium-plated finish. Central tourbillon cage rotates completely once every minute, offsetting the effect of gravity on the performance of the watch. Officially certified chronometer.
Version 2600A non-chronometer
Version 2600B chronometer
Version 2633A skeletonized
Version 2635A co-axial
Version 2636A co-axial, skeletonized