Zenith. A silver open face keyless wind chronograph pocket watch Zenith. Chronographe de poche à cadran ouvert en argent (800) remontoir au pendant Date: Circa 1890 Movement: Gilt full plate, Swiss lever, cut and compensated bi-metallic balance wheel Dial: White, black Arabic numerals, black outer 1/5th second divisions, subsidiary dials at 3 and 6 for running seconds and 30 minute recording, gilt leaf hands, centre chronograph hand Case: Polished round, snap on back, fine engravings to back Size: 52mm Weight: 104,52g For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing