Omega Seamaster 300 Omega Master Co-Axial Watch - 41 mm Steel Case - Sedna Gold Unidirectional Bezel - Black Dial - Brown Leather Strap - 233.22.41.21.01.002 5227J001 self winding caliber 240 movement

self winding caliber 240 movement with ultra thin

40 mm steel case

Caliber Omega 3330 self winding movement with chronograph

41 mm steel and sedna gold case with anti-magnetic protection

Omega Seamaster 300 Omega Master Co-Axial Watch - 41 mm Steel Case - Sedna Gold Unidirectional Bezel - Black Dial - Brown Leather Strap - 233.22.41.21.01.002 5227J001 self winding caliber 240 movement41 mm stainless steel case, transparent back, self locking crown, 18K sedna gold unidirectional rotating bezel with ceramic ring, sapphire crystal with anti reflective treatment inside, black dial 18K sedna gold hands, caliber 8400 self winding movement, approximately 60 hours of power reserve, brown leather strap. Water resistant to 300 m (1000 ft).