ROBERT CART TWENTY DOLLAR COIN WATCH YELLOW GOLD Robert Cart S. A. , Le Locle. Made in the 1940s. Fine, 18K yellow gold coin wristwatch set into a $20 US coin dated 1915 C. Double case, coin opening with a push-piece concealed in the band, three-body hinged inner case, straight lugs. D. Champaigne with painted radial Arabic numerals. Black baton hands M. 9’’’, rhodium-plated, 17 jewels, straight-line lever escapement, monometallic balance, self-compensating flat balance spring, index regulator. Dial signed. DIAM. 35 mm. THICKNESS 5 mm.