A running, used Smiths Cricklewood, London, brass wind-up car clock made in England.  No idea what car it might have come from, but this type was used during the 30s and 40s in Bentley, Rolls Royce, Rover, Morris, or Austin.  The hands move smoothly with the setting knob and it works fine and keeps good time.  The case is brass that probably was nickel plated when new, but most of that has worn off over time.