Hinged back 34mm across wrist watch marked Marconi Lever by Rolex, circa 1920s. Hinged backed silver tone case marked Marconi Special. Nice silvered metallic dial with Roman numerals, minute markers and a subsidiary constant seconds register signed Rolex Marconi Lever. 15 jewel Swiss made movement signed Marconi Lever. Marconi Lever was a secondary Rolex brand in the 1920s that was not in large production. Movement recently serviced and in excellent working condition.