Platinum, Diamond & Emerald Wrist Chronometer no. 4268

Case: Platinum, Diamond and Emerald Lapel-Watch Dial: Movement: [Attributed to Niton, Possibly (L shape caliber, 7'''), 18 jewels] Provenance: 19?? - Niton, Geneve 2012 - Sotheby’s, Magnificent jewels, 5 december 2012, "Platinum, Diamond and Emerald Brooch-Watch, Circa 1930 The vase-form watch case flanked by columns with floral accents, set throughout with numerous trapeze, triangle, baguette and single-cut diamonds weighing approximately 12.30 carats, accented by numerous variously-cut emeralds, the vase topped by a gray pearl, numbered 4268; the vase folds out to reveal a watch, the dial with Arabic numerals, manual movement."