37-jewel Cal. 3313 self winding movement with two button chronograph, circular black dial with fifth seconds ring enclosing luminous baton numerals and arabic quarters, polished arrow hands with luminous fill, date aperture, subsidiary dials for 30-minute and 12-hour registers and continuous seconds, within a steel screw back case, 60-minute calibrated rotating bezel, round chronograph buttons, screw down crown, maker's leather strap and steel deployant clasp, with fitted red leather display box, warranty card, COSC certificate, tag, instruction book and outer packaging, case, dial and movement signed. 45mm