A lady’s diamond set cocktail watch head, the circular silvered dial signed ‘Sorley’ with black Arabic numerals, 15 jewel Vertex movement, the case with scroll engraved band, signed ‘Vertex’, stamped ‘platinum’ and numbered ‘1069/7221’, the round bezel and lug shoulders set with old brilliant-cut diamonds, total diamond weight approximately 1.3 carats, dial diameter 14.5mm. £400-£600