IWC Schaffhausen 52011

The IWC caliber 52011 is an automatic movement manufactured by IWC Schaffhausen in Switzerland. It beats at 28,800 vph and builds a 168-hour power reserve from two barrels. The movement features the Pellaton winding system with zirconium oxide ceramic components and bi-compax subdials displaying running seconds and power reserve. An evolution of the 52010, it powers watches such as the Portugieser Automatic 42.