This is a pre-owned Omega Speedmaster chronograph watch featuring a black dial and tachymeter function. Constructed from stainless steel case and bracelet, it includes luminous silver-tone hands and markers, three sub-dials for 60-second, 30-minute, and 12-hour timing functions, an automatic self-winding movement with 48-hour power reserve, sapphire crystal face resistant to scratches, a hidden folding clasp closure mechanism, and is rated water-resistant up to 50 meters. The round case measures 42 mm in diameter and has a thickness of 14.3 mm. This dress watch style model comes labeled Swiss Made.