37. F. Rotig. A fine 18K gold open face keyless wind chronograph pocket watch F. Rotig. Chronographe de poche à cadran ouvert en or jaune 18K (750) remontoir au pendant Date: Circa 1890 Movement: Gilt full plate, English lever, cut and compensated bi-metallic balance wheel Dial: White, black Roman numerals, black outer minute track and second divisions, subsidiary dials at 6 for running seconds, gilt spade hands, chronograph hands to centre Case: Polished round, 18K gold cuvette, chronograph button to pendant at 12 Signed: Dial & movement Size: 56mm Weight: 147,23g