Patek Philippe Ref 1463 Chronograph 18K Yellow Gold, Manual wind, tachometer, 30-minute register at 300, small seconds register at 9:00, Dial, case, movement signed, 35 mm x 12.5 mm case screw-down case back and antimagnetic dust protecting sheild, Two-tone silvered and matte dial with applied yellow gold Roman numerals and bâton indexes, outer minutes/chronograph divisions on a silvered ring, outermost tachometer scale graduated to 300 units per hour, subsidiary dials for the seconds and 30-minute register, Cal. 13???, rhodium-plated, Côtes de Genève decoration, 23 jewels, straight-line lever escapement, monometallic balance, eight adjustments, Breguet balance spring, swan-neck micrometric regulator. Stock # PTP-310102.