A BELLE ÉPOQUE ENAMEL AND DIAMOND OPEN FACE PENDANT WATCH The 18k gold and guilloche enamel case with platinum and rose-cut diamond mount, the gold watch face with Arabic numeral indicators, stem-wind and pin-set, and suspended from a conforming platinum and enamel chain, gross weight 18.4 dwt, length of chain 21 in. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing