PATEK PHILIPPE NAUTILUS. REF. 3 800 / 2JA 80's Middle-size wristwatch in 18K (750) yellow gold and stainless steel. Case: steel wing cushion with solid back, yellow gold bezel. Yellow gold crown. Dial: blue-gray "sigma" pattern with diamond hour markers, luminous hands and central gold seconds, black date window. Movement: automatic, cal. 335 SC. Steel bracelet with gold intermediary links and folding clasp, signed Patek Philippe. Dial, case and movement signed Numbered 1420479/556753. Diameter: 37 mm With Patek Philippe case. According to the Patek Philippe Archives, an extract cannot be issued for this watch.