Exceedingly rare yellow gold Patek Philippe ref 1518. Reference 1518 is the rarest Patek Philippe reference with only 281 pieces produced from 1941 to the 1954. It represents the first perpetual calendar chronograph wristwatch serially produced. Gold cases were made by Emile Vichet (case maker number 9, inscribed in a key engraved in the case back). Ref 1518 is an iconic watch and a dream for any collector.
Case n: 650xxx