Omega Speedmaster Mark II Co-Axial Chronograph Watch - 42.4 mm Steel - Sedna Gold Case - Grey Dial - Steel And Sedna Gold Bracelet - 327.20.43.50.01.001 41.0 unidirectional rotating black ceramic bezel

unidirectional rotating black ceramic bezel with diving scale filled with Super-LumiNova and numerals in colored lacquer representing the colors of the Olympic rings

white dial with a wave pattern made from 138 diamonds and sapphire hour markers

18K Sedna gold crown and push pieces

38 mm platinum case

Arabic numerals with luminescent coating

Omega Speedmaster Mark II Co-Axial Chronograph Watch - 42.4 mm Steel - Sedna Gold Case - Grey Dial - Steel And Sedna Gold Bracelet - 327.20.43.50.01.001 41.0 unidirectional rotating black ceramic bezel42. 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).