A FINE LADIES PLATINUM & DIAMOND COCKTAIL WATCH CIRCA 1920s D: Silver engine turned dial with applied Arabic numerals, Breguet style hands. M: Manual wind movement signed Grand Prix Paris 1900. C: Circular case with 18 rose cut original set diamonds, hallmarked & numbered, case diameter measures approx. 21mm. B: Original platinum bracelet with six rose cut diamonds, numbered U11/78350/19/557 B.