Union. A Small chrome keyless wind open face chronograph pocket watch Union. Petit chronographe de poche à cadran ouvert en chrome remontoir au pendant Date: Circa 1940 Movement: Nickel lever, bi-metallic compensation balance, Breguet overcoil balance spring Dial: White enamel, black Arabic numeral hour markers, black outer second divisions, subsidiary dials at 12 and 6 for seconds and 30 minute recording, blued steel cathedral hands, centre seconds chronograph hands Case: Polished hinged back and cuvette, no.706500 Signed: Dial Size: 47mm For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing