39. An 18K gold keyless wind open face chronograph pocket watch Chronographe de poche à cadran ouvert en or jaune 18K (750) remontoir au pendant et fonction rattrapante Date: Circa 1883 Movement: Frosted gilt 3/4 plate English lever, cut and compensated bi-metallic balance wheel, patented May 3rd 1883 Dial: White, black Roman numeral hour markers, black outer minute track, black outer 1/5th second divisions, sunken subsidiary dials at 6 and 12 for constant seconds and 30 minute recording, blued steel spade hands, centre chronograph hand Case: Polished hinged, chronograph button through the crown, No.17017 Size: 52mm Weight: 108,59g