Omega Seamaster Railmaster Omega Co-Axial Master Chronometer Watch - 40 mm Steel Case - Vertically Brushed Grey Dial - Brown Leather Nato Strap - 220.12.40.20.06.001 da-vinci Calibre 3126 / 3840 Manufacture

Calibre 3126 / 3840 Manufacture selfwinding movement with chronograph

34 mm 18K Sedna gold case

silver dial

blue ceramic bezel ring with brushed platinum Liquidmetal tachymeter scale

18K sedna gold bezel with omega ceragold diving scale

Omega Seamaster Railmaster Omega Co-Axial Master Chronometer Watch - 40 mm Steel Case - Vertically Brushed Grey Dial - Brown Leather Nato Strap - 220.12.40.20.06.001 da-vinci Calibre 3126 / 3840 Manufacture40 mm stainless steel case, screw in crown, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, vertically brushed grey dial with brushded stainless steel hands and recess hour markers filled with vintage color Super LumiNova, caliber 8806 self winding Co Axial master chronometer movement, approximately 55 hours of power reserve, brown leather NATO strap. Water resistant to 150 m (500 ft).