Case: three body, polished, stepped bezel, curved lugs, snap on case back.Dial: ivory with painted Arabic numerals, telemetre and outermost tachometer scale, minutes/seconds track, subsidiary dials for seconds and 30 minutes. Steel baton hands.Movement: rhodium plated, straight line lever escapement, monometallic balance, Breguet balance spring, index regulator.Dial, case and movement signed.Diam: 40 mm Thickness: 13 mmDial, case and movement in quite good condition; case slightly scratched.