Platinum & diamond Chronometer no. 3676

Case: Ultra-thin (6.7mm) French platinum hallmarked case with blue enameled "LKJ" monogram on reverse, with 66 diamonds around the case band, 17 diamonds on the bow with a pearl crown Dial: 80 diamonds on the markers, and diamond encrusted hands Movement: 16''', all adj, Geneva seal, 18 jewel. This movement obtained the Poincon de Geneve quality seals at October 2, 1925 and was first of a batch of two (3676-3677) and in that case very rare. Provenance: 1925 - Niton, Geneve 2013 - Alderfer Auction Alderfer Auction, 12 June 2013, Hatfield, PA, Lot 1041, "Platinum & Diamond Niton, Geneva, Pocket Watch 18-jewel gentleman's pocket watch with 66 diamonds around the case band, 17 diamonds on the bow with a pearl crown, 80 diamonds on the markers, and diamond encrusted hands with an ultra-thin (6.7mm) French platinum hallmarked case with blue enameled initials on reverse. C. 1919. 42.6mm face, serial #3676. Currently not running (needs a mainspring)", (sold for $3,250 USD) https://www.invaluable.com/auction-lot/platinum-diamond-niton,-geneva,-pocket-watch-1041-c-7cb8a52f08