PATEK PHILIPPE. A FINE PLATINUM AND DIAMOND-SET OCTAGONAL AUTOMATIC WRISTWATCH WITH SWEEP CENTRE SECONDS, DATE AND BRACELETSigned Patek Philippe, Geneve, Model Nautilus, Movement No. 1427791, Case No. 2865842, Ref. 3800/3, circa 1980Cal. 335SC, nickel-finished lever movement, 29 jewels, the ribbed midnight blue dial with diamond-set dot numerals, luminous hands, sweep centre seconds, window for date, the octagonal water-resistant-type case with diamond-set bezel, together with a platinum Patek Philippe link bracelet and concealed deployant clasp, case, dial and movement signed37 mm. wide; overall length approximately 185 mm.