Patek Philippe Calatrava 18K Yellow Gold Opaline Silvery White Dial Manual Wind 32mm Screwback Rare reference 3720 Ultra Thin Sigma Dial

Overview An 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. This 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. Case The 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. Bracelet The watch is on a black leather band and tang buckle Condition This Patek has a manual winding movement and is running strong, the watch was recently serviced in house. The 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. Specifications Brand: Patek Philippe Model: Calatrava Reference number: 3720 Movement: Manual winding Case material: Yellow gold Bracelet material: Leather Year of production: 1985 (Approximation) Condition: The item shows minor signs of wear, such as small, intangible scratches. Most Recent Servicing: December 17, 2025 Serviced in-house Scope of delivery: No original box, no original papers Gender: Men's watch/Unisex Location: United States of America, Florida, Ft Lauderdale Availability: Item is in stock Caliber Movement: Manual winding Base caliber: cal. 177 Number of jewels: 18 Case Details Case material: Yellow gold Case diameter: 32 x 37 mm Thickness: 5.0 mm Water resistance: 3 ATM Bezel material: Yellow gold Crystal: Sapphire crystal Dial Dial: Silver Dial numerals: Lines Bracelet/Strap Bracelet material: Leather Bracelet color: Black Clasp: Buckle Clasp material: Steel