No. 16, with later alterations
17-jewel 18-size damascened nickel shaped half plate movement, altered with later stem winding and lever setting mechanism, gold train and escape wheel, bimetallic balance, blued overcoiled spring, regulator with repositioned gold index on back plate, silvered dial, signed "R. J. McEwan", arabic chapters, subsidiary seconds at 3 o'clock, blued hands, metal display case
52mm