Tiffany & Co. An 18ct gold, enamel and diamond-set openfaced keyless pendant watch and chain mvt by Longines W Co no 2931347 case by Wittnauer & Co no 137119 circa 1914

Nickel lever movement, 15 jewels, gilt dial, Arabic numerals, blued steel Breguet hands, gold circular case with translucent slate-grey enamel decoration on an engine turned ground, white enamel bezels, clover form pendant decorated in a white enamel Greek key pattern, case back highlighted with an open work diamond-set plaque at the centre, dial signed Tiffany & Co., movement signed Longines W. Co., case signed Wittnauer & Co. suspended from a 14ct gold chain of enamel baton form links interspersed with trace links highlighted with old European-cut diamonds, diameter 23mm, length of chain approximately 662mm, inner case engraved M.M.M. Xmas 1914, bezel with some enamel loss.