Omega Style No: 220.10.38.20.01.002 Omega Seamaster Railmaster Co-Axial Master Chronometer The 1957 Trilogy Limited Edition of 3,557 Watch - 38 mm Steel Case - Black Tropical Dial

38 mm stainless steel case, scratch-resistant sapphire crystal anti-reflective treatment inside, black tropical dial with vintage recessed indexes filled with Super-LumiNova, Caliber Omega 8806 self winding movement with a co-axial escapement, chronometer, approximately 55 hours of power reserve, stainless steel bracelet. Water resistant to 6 bar (60 metres / 200 feet).