{"product_id":"patek-philippe-calatrava-18k-yellow-gold-opaline-silvery-white-dial-manual-wind-32mm-screwback-rare-reference-3720-ultra-thin-sigma-dial","title":"Patek Philippe Calatrava 18K Yellow Gold Opaline Silvery White Dial Manual Wind 32mm Screwback Rare reference 3720 Ultra Thin Sigma Dial","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eAn elegant and very rare all original Patek Philippe Calatrava 32mm featuring an 18k yellow gold case with an opaline dial. Reference 3720. This unusual Calatrava has a flat rimmed bezel and ultra thin profile.\u003cbr\u003e\u003cbr\u003eThis watch has model number 3720 and is all original Patek Philippe, except for the band and buckle. The watch is estimated to have been produced in the late 1980s.\u003c\/p\u003e\n\u003ch3\u003eCase\u003c\/h3\u003e\n\u003cp\u003eThe case measures 32 mm wide excluding the crown, and 37 mm tall from lug tip to tip. The crown has the Patek Philippe Calatrava insignia. The silvery white opaline dial has gold baton index markers. The dial is protected by a scratch resistant sapphire crystal. The dial has a rare sigma stamping by Swiss at 6 o'clock.\u003c\/p\u003e\n\u003ch3\u003eBracelet\u003c\/h3\u003e\n\u003cp\u003eThe watch is on a black leather band and tang buckle\u003c\/p\u003e\n\u003ch3\u003eCondition\u003c\/h3\u003e\n\u003cp\u003eThis Patek has a manual winding movement and is running strong, the watch was recently serviced in house.\u003cbr\u003e\u003cbr\u003eThe photos are enlarged to show the fantastic condition of the watch. The watch has no dents or dings and shows minor signs of wear in the form of light hairline scratches throughout the case back.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003eBrand: Patek Philippe\u003cbr\u003eModel: Calatrava\u003cbr\u003eReference number: 3720\u003cbr\u003eMovement: Manual winding\u003cbr\u003eCase material: Yellow gold\u003cbr\u003eBracelet material: Leather\u003cbr\u003eYear of production: 1985 (Approximation)\u003cbr\u003eCondition: The item shows minor signs of wear, such as small, intangible scratches.\u003cbr\u003eMost Recent Servicing: December 17, 2025\u003cbr\u003eServiced in-house\u003cbr\u003eScope of delivery: No original box, no original papers\u003cbr\u003eGender: Men's watch\/Unisex\u003cbr\u003eLocation: United States of America, Florida, Ft Lauderdale\u003cbr\u003eAvailability: Item is in stock\u003c\/p\u003e\n\u003ch3\u003eCaliber\u003c\/h3\u003e\n\u003cp\u003eMovement: Manual winding\u003cbr\u003eBase caliber: cal. 177\u003cbr\u003eNumber of jewels: 18\u003c\/p\u003e\n\u003ch3\u003eCase Details\u003c\/h3\u003e\n\u003cp\u003eCase material: Yellow gold\u003cbr\u003eCase diameter: 32 x 37 mm\u003cbr\u003eThickness: 5.0 mm\u003cbr\u003eWater resistance: 3 ATM\u003cbr\u003eBezel material: Yellow gold\u003cbr\u003eCrystal: Sapphire crystal\u003c\/p\u003e\n\u003ch3\u003eDial\u003c\/h3\u003e\n\u003cp\u003eDial: Silver\u003cbr\u003eDial numerals: Lines\u003c\/p\u003e\n\u003ch3\u003eBracelet\/Strap\u003c\/h3\u003e\n\u003cp\u003eBracelet material: Leather\u003cbr\u003eBracelet color: Black\u003cbr\u003eClasp: Buckle\u003cbr\u003eClasp material: Steel\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Patek Philippe","offers":[{"title":"Default Title","offer_id":53861833146687,"sku":null,"price":10800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0709\/0084\/2815\/files\/Photoroom_013_20260115_153503.png?v=1782498505","url":"https:\/\/nicholasestatebuyers.com\/products\/patek-philippe-calatrava-18k-yellow-gold-opaline-silvery-white-dial-manual-wind-32mm-screwback-rare-reference-3720-ultra-thin-sigma-dial","provider":"Nicholas Estate Buyers","version":"1.0","type":"link"}