This Patek Philippe Nautilus is made of Steel and has a 40mm case size. The watch is pre-owned and has been professionally serviced inside and out to Patek Philippe quality standards and comes with an original Patek Philippe box. This watch has been customized by Kaptain Gold and does not come with the manufacturer's warranty. In place of the manufacturer's warranty, we offer a 12-month Icebox warranty. Icebox is not an authorized Patek Philippe dealer.