Union circa 1940 chrome open-faced pocket watch Union circa 1940

a true collectors piece! Specifications [M] damascened back plate, lever escapement, compensation balance, 18,000 BPH [D] black coloured two-tone, elongated black Arabic numerals, secondary tone outer minute ring, gold steel hands, engine-turned subsidiary seconds [C]chrome, satin finished case back, bow and rounded bezel, polished band [S] dial signed Measurements 48mm diameter excluding crown 58mm height including bow 9mm depth to centre of crystal