National Park. A stainless steel keyless wind open face chronograph pocket watch National Park. Chronographe de poche à cadran ouvert en acier remontoir au pendant Date: Circa 1930 Movement: Swiss lever, cut and compensated bi-metallic balance, column wheel chronograph Dial: White, signed Case: Round, No.10054 Signed: Dial Size: 43mm For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing