The Omega Speedmaster Professional Moonwatch (ref. 311.33.42.30.01.002) is a legendary, unisex chronograph with a 42mm steel case and a classic black dial. Powered by the manual-winding caliber 1863, it offers a 48-hour power reserve. This iconic watch features a tachymeter bezel and a sapphire crystal, maintaining its legendary design while enhancing its durability. It comes with a black leather strap and a steel fold clasp.