This timepiece’s time data is driven by a self-winding movement. The P.9010 caliber incorporates https://www.crwmontres.com/ a system which https://www.crwmontres.com/Collection/ballon-de-cartier/ ensures that the hour hand and the https://www.crwwatches.to/Collection/tortue/ date can be set simultaneously. Once fully wound, it delivers a power reserve of 3 days thanks to the existence of two barrels.