Omega Seamaster 300 Omega Master Co-Axial Watch - 41 mm Steel Case - Yellow Gold Unidirectional Bezel - Black Dial - Steel And Yellow Gold Bracelet - 233.20.41.21.01.002 Chocolate domed scratch-resistant sapphire crystal anti-reflective

domed scratch-resistant sapphire crystal anti-reflective treatment on both sides

two-tone steel and red gold bracelet

42 mm stainless steel case with helium escape valve

stainless steel bracelet

Omega Seamaster 300 Omega Master Co-Axial Watch - 41 mm Steel Case - Yellow Gold Unidirectional Bezel - Black Dial - Steel And Yellow Gold Bracelet - 233.20.41.21.01.002 Chocolate domed scratch-resistant sapphire crystal anti-reflective41 mm stainless steel case, transparent back, self locking crown, 18K yellow gold unidirectional rotating bezel, sapphire crystal with anti reflective treatment inside, black dial with 18K yellow gold hands, caliber 8400 self winding movement, approximately 60 hours of power reserve, stainless steel and 18K yellow gold bracelet. Water resistant to 300 m (1000 ft).