Omega Style No: 234.30.41.21.03.001 Omega Seamaster 300 Co-Axial Master Chronometer - 41 mm Steel Case - Blue Dial

41 mm steel case, transparent back, blue oxalic anodized aluminium bezel with diving scale filled with vintage Super-LumiNova, domed scratch-resistant sapphire crystal with anti-reflective treatment inside, blue dial with blue oxalic anodized aluminium bezel with its diving scale filled with vintage Super-LumiNova, Calibre 8912 self-winding chronometer movement. Water resistant to 300 metres (1000 feet).