Patek Philippe. A stainless steel automatic wristwatch with sweep centre seconds, date, bracelet, "Nautilus" cufflinks, original certificate and box Signed Patek Philippe, Genève, Nautilus model, ref. 3800/1, movement no. 1'424'190, case no. 2'810'518, manufactured in 1984 Movement: cal. 335 SC, automatic, 29 jewels, signed Dial: signed Case: two-part secured by four screws in the band, underside of the bezel numbered 518, 37 mm. wide, signed With: a pair of stainless steel "Nautilus" cufflinks signed Patek Philippe, Genève, Patek Philippe Certificate of Origin dated 22 May 1985, Extract of the Archives confirming production of the present watch with black matte ribbed dial, applied white gold indexes, tritium in 1984 and its subsequent sale on 22 May 1985, Wempe Düsseldorf Service Invoice dated 24 March 2012, product literature, leather folder, presentation box