Edwardian Gold, Platinum, Green Guilloche Enamel and Diamond Pendant-Watch, Tiffany & Co. 18 kt., the pendant-watch decorated with deep lime green guilloche enamel, surmounted by a delicate platinum filigree design, accented by small rose-cut diamonds, the reverse with a gold tone dial, subsidiary seconds, movement, case and dial signed Tiffany & Co., movement signed Longines, circa 1910.