A silver keyless wind open face chronograph pocket watch Chronographe de poche à cadran ouvert en argent (800) remontoir au pendant Date: Circa 1900 Movement: Gilt full plate, Swiss lever, cut and compensated bi-metallic balance wheel Dial: White, black Arabic numerals, black outer 1/5th second divisions, outer tachymetre scales, subsidiary dials at 12 and 6 for running seconds and 30 minute recording, blued steel leaf hands, centre chronograph hand Case: Tarnished polished round, snap on back, fuchsia protection on both sides Size: 55mm Weight: 137,27g For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing