ART DECO PLATINUM AND DIAMOND PENDANT WATCH ON CHAIN.C. 1920 case and face signed "Dingwall.", Delicately pierced case with bow knot crest enhanced with numerous round diamonds, suspends free swinging emerald-cut diamond weighing approx. 75 ct. with two smaller round diamonds; gold-tone face with black enamel Roman numerals; suspended on delicate chain with bezel-set old European cut diamond weighing approx. .50 ct., and leaf ornament with ten round diamonds; case affixed with clasp to wear as brooch. Estimate $2,500-3,500