Case material: Steel; Charge: Automatic; Conditions: Used Year : 2009; Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: 5800/1A-001 A Rare Stainless Steel Nautilus Medium Gents Wristwatch, black-blue dial with applied hour markers, date at 3 0'clock , a fixed stainless steel bezel, a stainless steel bracelet with a stainless steel deployant clasp, sapphire glass, exhibition caseback, automatic movement, in excellent condition, comes complete with a Patek Philippe box and Papers dated March 2009. N.B. This watch was a part of the 2009 collection, which was designed and released in celebration of Patek Philippe's 30th Anniversary of the Nautilus. The 5800/1A-001 was the only model from the collection that featured the old style two-part case and was only manufactured for a single year, making this watch an excellent addition to one's collection.