PATEK PHILIPPE, A STAINLESS STEEL CHRONOGRAPH PENDANT WATCH WITH REGISTER CIRCA 1970, NO. 869.243, REF. 840

nickel lever movement stamped with the seal of Geneva, 23 jewels, mono-metallic compensation balance, black matte dial, applied Arabic and baton numerals, 2 subsidiary dials for constant seconds and 30-minute register, outer ring divided into 1/5 seconds, pendant at 6, chronograph push-buttons at 11 and 1, screw back, case, dial and movement signed.