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 Case white mother-of-pearl dial with diamond

white mother-of-pearl dial with diamond hour markers and scratch-resistant saphire crystal

fixed 18K yellow gold bezel with engraved tachymetric scale

stainless steel and 18K pink gold bracelet with Oysterlock safety clasp and 5 mm comfort extension link

12-zone flinque dial

caliber 2500 self-winding movement set with rhodium-plated finish

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 Case white mother-of-pearl dial with diamond40 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).