It is through the Perpetual Manufacture that Ulysse Nardin attempts to lay claim to the title of manufacturer of the most consumer friendly perpetual calendar to ever grace the world of horology. This inventively designed perpetual calendar timepiece also features a handy second time zone function and is powered by the legendary in-house-manufactured Caliber UN-32 self-winding movement that allows both forwards and backwards date adjustment. These functions, along with hours, minutes and seconds display are laid out on an immaculate silver dial with sword-shaped hands. Surrounding the dial is a smooth, round polished stainless steel bezel. This variation of the Perpetual Manufacture uses a sturdy black alligator leather strap with a deployment clasp and has production limited to just 250 pieces.