Brand new authentic Omega Speedmaster men's watch, model 310.32.42.50.02.001 features a stainless steel case, Bue nylon strap with tang clasp, fixed bezel on a silver dial displaying blue hands and index markers including outer minute markers plus three sub-dials (60-second, 30-minute, 12-hour). Equipped with automatic chronometer chronograph movement (Calibre 3861), offering power reserve function. Water resistant to 50 meters / 165 feet and includes a solid case back with standard round shape of 42mm diameter and 14.5mm thickness, known also as model 31032425002001.