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 1920 Movement: Gilt full plate, Swiss lever, cut and compensated bi-metallic balance wheel Dial: White, signed Case: Polished hinged round Signed: Dial, case, movement Size: 52mm Weight: 91,26g For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing