Antiquorum Auctioneers Lot soldUSD 0CHF 0 (listed)EstimateUSD 2 751 - 4 953CHF 2 500 - 4 500 (listed) See all lots Piaget Antiquorum - Important Modern & Vintage Timepieces 2015 | Geneva, 08 November Summary Movement Automatic Lot number 49 Diameter 35mm Location Description PIAGET TWENTY DOLLAR GOLD COIN WATCH Piaget, 'Twenty Dollars 1900', movement No. 634763. Made in the 1980s. Very fine, 18K yellow gold $20 U.S. coin dated 1900 with concealed watch. Dial, case and movement signed.