The Omega Speedmaster Racing 44.25 mm, crafted in stainless steel, features a black ceramic bezel with a Liquidmetal™ tachymeter scale. Its black dial showcases a distinctive racing minute track, blackened subdials, and Super-LumiNova hands. Powered by the Co-Axial Master Chronometer Calibre 9900. 329.30.44.51.01.001