circa 1890, spring-loaded outer cover hinged at 9 o'clock with blue enamel Roman numerals and inner chemin de fer chapter ring around the circular aperture, white dial, 45mm diameter, with black Roman numerals, blued double spade hands, subsidiary running seconds register at 6 o'clock, centre chronograph sweep and subsidiary minute register at 12 o'clock, three-quarter plate crown wind chronograph movement with hand setting button at 4 o'clock and start/stop/reset pusher at 12 o'clock, minute repeating mechanism with steel hammers striking on a coiled gong and slider at 6 o'clock,case, 52mm diameter, verso hinged at 9 o'clock, plain and polished, interior stamped 18C 0,755 numbered 61561, the cuvette outer engraved EXAMINED BY W.A. WATKINS 59 CAREY STREET CHANCERY LANE LONDON SWISS MADE, inner similarly stamped as inner cover and with additional Swiss marks for items of 18ct gold for export to England, Fleurier, 145.3g gross