61. An 18K gold open face keyless wind chronograph pocket watch Chronographe de poche à cadran ouvert en or jaune 18K (750) remontoir au pendant Date: Circa 1900 Movement: Nickel full plate, Swiss lever, cut and compensated bi-metallic balance wheel Dial: White, black Arabic numerals, black outer minute track and 1/5th second divisions, subsidiary dials at 6 and 12 for running seconds and 30 minute recording, gilt spade hands, centre chronograph hand Case: Polished round, 18K gold cuvette, chronograph button to pendant at 12, No.255726 Size: 45mm Weight: 74,53g