Omega Speedmaster Mark II Co-Axial Chronograph Watch - 42.4 mm Steel - Sedna Gold Case - Grey Dial - Steel And Sedna Gold Bracelet - 327.20.43.50.01.00142. 4 mm x 46. 2 mm steel sedna gold case, 18K sedna gold bezel, sapphire crystal with anti reflective treatment on both sides, grey dial, caliber 3330 self winding movement with chronograph function, approximately 52 hours of power reserve, steel and 18K sedna gold bracelet. Water resistant to 100 m (330 ft).

the scratch-resistant sapphire crystal and screw-down crown complement the watch's aesthetic appeal

At the heart of this masterpiece lies the Rolex Calibre 3255 Automatic movement

CROWN Screw Down BEZEL Titanium MOVEMENT Automatic HANDS Luminous DIAL COLOR Blue DIAL TYPE Analog DIAL MARKERS Index BAND MATERIAL Titanium CLASP AP Folding Clasp WATER RESISTANCE 50 Meters (165 Feet) GENDER Men's

screw-down crown and push buttons with Triplock triple waterproofness

anodized black aluminum lower bezel with 6 H-shaped black PVD titanium screws

ensuring water resistance up to 100 meters/330 feet

it's an emblem of enduring sophistication

1 mm thick

combined with the brilliance of the diamonds

BRAND Audemars Piguet SERIES Royal Oak MODEL NUMBER 26319OR

its scratch-resistant sapphire crystal protects the dial while the screw-down crown guarantees water resistance up to 100 meters

and an impressive power reserve of approximately 70 hours