百達翡麗，罕有，不鏽鋼自動上弦鏈帶腕錶，配日曆顯示，NAUTILUS，型號3700/1百達翡麗，罕有，不鏽鋼自動上弦鏈帶腕錶，配日曆顯示，NAUTILUS，型號3700/1機芯： 自動上弦錶盤：黑色錶徑： 42毫米附件： 不鏽鋼百達翡麗鏈帶，整體長度約170毫米，百達翡麗保養發票備註：後期錶盤附註：拍品序列號可按要求提供百達翡麗Details PATEK PHILIPPE. A RARE STAINLESS STEEL AUTOMATIC WRISTWATCH WITH DATE AND BRACELETNAUTILUS MODEL, REF. 3700⁄1Movement: Automatic Dial: Black Case: 42 mm. wideWith: Stainless steel Patek Philippe bracelet, overall length approximately 170 mm., Patek Philippe service invoiceRemark: Service dial Note: Serial numbers are available upon request品相: The water-resistant Nautilus ref. 3700 The case patent design of the first Nautilus, reference 3700⁄1, was registered on 23 April 1976. It comprises two parts, the main body and the bezel, at each side is an “ear” which couples with a corresponding flange, the two parts are secured by lateral screws. A rubber seal sits between the bezel and case body and is thus compressed when subject to water pressure forming a perfect watertight seal. From 1976 until 1980, the cases were made for Patek Philippe by Favre-Perret SA, Le Crêt du Locle. In 1980, Patek Philippe launched the manufacture of cases and bracelets in their Ateliers Réunis workshops and the Nautilus changed its reference number to the new ref. 3700-11.