Omega Speedmaster Professional Moonwatch 3184.108.40.206.01.001 Mens Watch. 42mm stainless steel case with tachymeter bezel. Black dial with luminous hands and indexes. 3 chronograph sub-dials displaying seconds, minutes and hours. Black alligator leather strap with a double push-button deployment clasp. Will fit up to a 7.25-inch wrist. Hesalite crystal. Calibre 1861 Mechanical hand winding movement with a 48-hour power reserve. Original Box, Papers, loupe, and 2 additional nato straps included. This watch is backed by our one year warranty.