CASE: Two body, polished, stepped bezel, tear drop lugs, snap on case backDIAL: White enamel with black Arabic numerals, subsidiary dials for the seconds and 30 minutes, red tachometer scale, minutes/seconds track. Steel Spade handsMOVEMENT: Cal.872, rhodium plated, straight line lever escapement, monometallic balance, flat balance spring.Dial, case and movement signed, in good conditionDIAM: 36 mm THICKNESS: 11 mm