Case material: Steel; Charge: Automatic; Conditions: Used Year : 1970; Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: nessuna Nautilus 3700 Vintage Jumbo - Full Yellow Gold 18k and steel, First generation blue ribbed dial with yellow gold and tritium indexes, Patek Philippe 28-255 C caliber, date, 2 central hands, minute division, automatic movement. The masterpiece of Gerald Genta !