Omega Seamaster Diver 300M Co‑Axial Master Chronometer 42 mm watch. Model reference: 210.30.42.20.01.001. Stainless steel case. Black dial. Automatic movement. Stainless steel bracelet. Swiss made. Watch comes in original packaging, with set of documents and warranty. At Watches of Mayfair we offer new authentic watches at the best prices.