Patek Philippe Ultra-Thin Gondolo Gemma White Gold Ref. 3528/4, 1970s

Identity Patek Philippe Ultra-Thin "Gondolo Gemma" Ref. 3528/4 White Gold, 1970s. Calibre 175 manual-winding movement, Geneva Seal. 18-carat white gold case, 26 × 30 mm, tonneau shape, sides set with brilliant-cut diamonds flanking the dial. Silver dial, baton indexes, anthracite lance hands, double index at 12 o'clock. Sapphire crystal. Integrated 18-carat white gold Patek Philippe mesh bracelet with signed concealed clasp. Horological context Patek Philippe was founded in Geneva in 1839 by Antoni Patek and Jean Adrien Philippe. The Gondolo name originates from the watches the maison supplied from the early 1900s to the Brazilian retailer Gondolo & Labouriau of Rio de Janeiro. Officially revived by Patek Philippe in 1993 as a collection gathering its form watches, the term applies by extension to earlier tonneau, cushion and rectangular pieces, among them Ref. 3528 of the 1960s and 1970s. The Gemma qualifier — Italian for gem — designates within this nomenclature the jewelled variants set with stones. Ref. 3528/4 condenses the design codes of the 1970s: ultra-thin tonneau architecture, all-gold construction from case to clasp, integrated mesh bracelet hugging the wrist, and diamond-set sides as the signature of dress form watches of the decade. Character Jewelled variant of Ref. 3528, defined by its diamond-set sides flanking the dial and matching mesh bracelet, in ultra-thin configuration. Watch serviced. Excellent condition. Delivered with the manufacturer's box and Contre-Temps two-year warranty.