5. C.L. Guinand, Locle. A 14K gold keyless wind open face split second chronograph C.L. Guinand, Locle. Chronographe de poche à cadran ouvert en or jaune 14K (585) remontoir au pendant avec seconde rattrapante Date: Circa 1890 Movement: Nickel full plate, Swiss lever, cut and compensated bi-metallic balance wheel, column wheel chronograph, Patent No.360, No.31483 Dial: White, black Arabic numeral hour markers, black outer 1/5th second divisions with blue Arabic 5 minute markers, subsidiary dials at 6 and 12 for seconds and 30 minute recording, gilt Louis XV hands, centre chronograph hand Case: Polished round, 14K gold cuvette, split second pusher button at 11, chronograph pusher button to pendant at 12, No.31483 Signed: Dial & Movement Size: 49mm Weight: 93,12gr