Case material: Yellow gold; Charge: Manual; Conditions: New Year : 1970; Presentation condition : With dealer guarantee ; Model: Calatrava Price on request Gmtbroker Reference: nessuna Calatrava 570 - Or blanc 18K, le plus rare cadran, SIGMA "O SWISS O", index bâtons et aiguilles dauphines or blanc, remontage manuel poiçon de Genève, extraits d'archives Patek Philippe // White gold 18K, SIGMA "O SWISS O" dial, the rarest dial, white gold sticks indexes and hands, mechanical movement, Geneva stamp, Patek Philippe extract of the archives.