{"product_id":"1990s-patek-philippe-calatrava-watch-3520d-18k-gold-32mm-hobnail-bezel-cal-177-18-jewels-adj-ultra-thin","title":"1990s Patek Philippe Calatrava Watch 3520D 18K Gold 32mm Hobnail Bezel - Cal. 177 18 Jewels ADJ. Ultra-Thin","description":"\u003cp\u003eOffered here is a vintage Patek Philippe Calatrava reference 3520D, dating to the late 1990s \/ early 2000s. This elegant ultra-thin manual-wind dress watch is crafted in solid 18K yellow gold and comes with its original Patek Philippe black leather strap and 18K yellow gold buckle.\u003c\/p\u003e\n\n\u003cp\u003eThe reference 3520D is distinguished by its decorative Clous de Paris hobnail bezel. The “D” stands for décor, referring to the finely textured guilloché pattern formed by rows of small pyramid-shaped points, a distinctive element of this Calatrava design.\u003c\/p\u003e\n\n\u003cp\u003eIt is powered by the Patek Philippe caliber 177, an ultra-thin manual-wind movement with 18 jewels and a Gyromax balance. It displays hours and minutes and is adjusted to heat, cold, isochronism, and five positions.\u003c\/p\u003e\n\n\u003cp\u003eThe movement operates at 21,600 vibrations per hour and was used during the later production of the reference 3520D. Its compact construction was particularly well suited to the slim proportions of this classic dress watch.\u003c\/p\u003e\n\n\u003cp\u003eThe clean white dial features black painted Roman numeral hour markers and black hands in a simple two-hand layout. It is signed “Patek Philippe Genève” beneath 12 o’clock and “Swiss” at 6 o’clock.\u003c\/p\u003e\n\n\u003cp\u003eThe solid 18K yellow gold case features straight lugs and is fitted with its original black Patek Philippe leather strap and signed 18K yellow gold Patek Philippe buckle.\u003c\/p\u003e\n\n\u003cp\u003eThis example is triple signed Patek Philippe on the dial, movement, and caseback. It has been inspected and authenticated by our in-house watchmaker and is running and keeping time.\u003c\/p\u003e\n\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\n\u003ch3\u003eGeneral Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Patek Philippe\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wristwatch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Calatrava\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e 3520D\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eYear \/ Era:\u003c\/strong\u003e late 1990s \/ early 2000s - Vintage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Men's\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e Switzerland\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDial \u0026amp; Display\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e Analog\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFeatures:\u003c\/strong\u003e Black Roman numeral hour markers, black hands, hours and minutes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eMovement\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual-winding\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e Patek Philippe 177\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eJewels:\u003c\/strong\u003e 18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMovement Functions:\u003c\/strong\u003e\n    \u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 8px;\"\u003e\n      \u003cli\u003eHours and minutes\u003c\/li\u003e\n      \u003cli\u003eGyromax balance\u003c\/li\u003e\n      \u003cli\u003eAdjusted to heat and cold\u003c\/li\u003e\n      \u003cli\u003eAdjusted to isochronism\u003c\/li\u003e\n      \u003cli\u003eAdjusted to five positions\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 21,600 vph\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCase \u0026amp; Band\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Solid 18K yellow gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Shape:\u003c\/strong\u003e Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBezel:\u003c\/strong\u003e Fixed Clous de Paris hobnail bezel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBand Type:\u003c\/strong\u003e Original Patek Philippe black leather strap\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuckle:\u003c\/strong\u003e Original signed Patek Philippe 18K yellow gold buckle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Back Markings:\u003c\/strong\u003e Patek-Philippe Geneva Swiss 18K 750 2827670 3520D\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCase Measurements (mm)\u003c\/h3\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Size:\u003c\/strong\u003e 32\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Diameter w\/Crown:\u003c\/strong\u003e 33\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Lug to Lug:\u003c\/strong\u003e 35.5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCase Thickness:\u003c\/strong\u003e 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLug Width:\u003c\/strong\u003e 18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBand Width:\u003c\/strong\u003e 17\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAdditional Info\u003c\/h2\u003e\n\u003cul style=\"list-style-type: disc; padding-left: 20px; margin-bottom: 12px;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBox \u0026amp; Papers:\u003c\/strong\u003e NO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Good vintage pre-owned condition with light signs of wear. Please refer to the photos for details.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNotes:\u003c\/strong\u003e Inspected and authenticated by our in-house watchmaker. Running and keeping time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Second Hand Horology\u003c\/h2\u003e\n\u003cp\u003eAt SECOND HAND HOROLOGY, we offer a curated selection of watches ranging from vintage to modern, including both brand-new and pre-owned timepieces. We’re committed to quality, accuracy, and integrity. Our listings feature:\u003c\/p\u003e\n\u003cp\u003eProfessional, unedited photography and clear, transparent descriptions. Every watch is thoroughly inspected and securely packaged to ensure a confident, seamless buying experience.\u003c\/p\u003e\n\u003cp\u003eWe also warmly invite you to visit our physical shop and explore the collection in person.\u003c\/p\u003e\n\n\u003ch2\u003eContact Us\u003c\/h2\u003e\n\u003cp\u003eWe appreciate you checking out our listing! Don’t hesitate to reach out with questions, offers, or just to talk watches — we love what we do and enjoy connecting with fellow enthusiasts.\u003c\/p\u003e\n\u003cp\u003eThank you for your business—we truly appreciate your support and look forward to serving you again in the future!\u003c\/p\u003e\n\n\u003cp\u003eWA-7634\u003c\/p\u003e","brand":"Patek Philippe","offers":[{"title":"Default Title","offer_id":48890976895170,"sku":"WA-7634","price":17500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0577\/7027\/9106\/files\/13_936133ca-e95d-4a26-bcb0-350635abf209.png?v=1789964815","url":"https:\/\/secondhandhorology.com\/products\/1990s-patek-philippe-calatrava-watch-3520d-18k-gold-32mm-hobnail-bezel-cal-177-18-jewels-adj-ultra-thin","provider":"SECOND HAND HOROLOGY","version":"1.0","type":"link"}