Unique Swiss 18k gold lever with enamel miniature Circa 1974

Open faced keyless lever by Patek Philippe
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A very fine and unique Swiss 18 carat gold open faced keyless lever watch with enamel miniature after F. Ribeira by Mrs Mercier, circa 1974. Nickel finished lever movement stamped twice with the Geneva seal, 18 jewels. Silvered matte dial with Roman numerals and subsidiary seconds. Snap on case back decorated with polychrome enamel miniature depicting ‘Retour du Verger’ (return from the orchard) after F. Ribeira, signed Mercier. Case, dial and movement signed. Accompanied by original certificate, sales tag, archival image, product literature and box.
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Diameter: 47 mm
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Signed: Patek Philippe Genève