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Platinum Wrist Chronometer no. 6928

Case: Platinum, diamonds Dial: Silver dial Movement: s/n; 6928, baguette caliber (?), 18 jewels, obtained the Poincon de Geneve quality seals on February 23, 1933 Provenance: 1933 - Niton, Geneva 2007 - Sotheby's Lot 148, Sotheby's, Magnificent Jewels, 14 November 2007, 10:30 AM CET, Geneva GENEVA. Property of a lady. Lady's diamond cocktail wristwatch, circa 1925, The rectangular dial applied with Arabic numerals, within a surround of millegrain-set single-cut and collet-set circular-cut diamonds, on a similarly-set openwork bracelet, length 165mm. Metal tested as platinum. Mechanical movement in running condition at the time of cataloguing, but please note that Sotheby's does not guarantee future working condition of watches. 18 jewels mechanical movement, signed Niton and numbered 6928, stamped with the seal of Geneva. Side of the case engraved with foliate and floral motifs. Estimated total diamond weight approximately 6.90 carats. Sign of normal wear commensurate with the age of the piece, minor scratches and tarnish to metal, well preserved, in good condition. https://www.sothebys.com/en/auctions/ecatalogue/2007/magnificent-jewels-ge0706/lot.148.html#