A men's pre-owned Omega Speedmaster chronograph with a Sand-blasted silvery dial. Features an engraved black ceramic tachymeter bezel, rhodium-plated luminous hands and indices for easy reading in low light. Analog display with three sub-dials: 12-hour, 30-minute (centrix), and small seconds function. Powered by the Swiss automatic mechanical movement Calibre 1861 Hand-Wind calibre, containing 18 jewels, beating at 21,600 vph, offering approximately 48 hours power reserve. Silver-tone stainless steel case with black leather strap secured by a tang buckle clasp. Sapphire crystal glass for scratch resistance, round shape measuring 39.7 mm diameter. Water resistant up to 50 meters / 165 feet.