A gold and enamel duplex open-face pocket watch by Ilbery, London, with blue enamel plaque to the reverse with floral decoration, the rim, bezel and stem with vari-coloured enamel decoration, the white enamel dial with Roman numerals, gold hands and sweep centre seconds, the signed gilt chased and engraved movement under hinged cuvette with monometallic balance and diamond endstone; with restoration