3017. 3017Y Patek Philippe. A fine 18K gold manual wind wristwatch with sigma dial Patek Philippe. Montre bracelet en or jaune 18K (750) cadran sigma et mouvement mécanique Model: Ellipse Reference: 3548 Date: Circa 1970 Movement: 18-jewel Cal.23-300PM manual wind, adjusted to heat, cold, isochronism and 5 positions, No.1219797 Dial: Sunburst purple blue, applied 18K gold baton hour markers, 18K gold pointed baton hands Case: Polished oval form, snap on back, No.2734078 Strap/Bracelet: Black crocodile leather Buckle/Clasp: Signed 18K gold buckle Signed: Case, dial & movement Size: 27mm x 32mm Weight: 35,62g