The Omega Speedmaster reference 311.93.44.51.04.002 features a 44mm ceramic case with a white dial. It is powered by the automatic winding Omega caliber 9300 movement, which includes a chronograph function and a date display. This model, introduced in 2015, is equipped with a co-axial escapement and is certified as a chronometer. The combination of these elements makes it a notable piece in the Speedmaster collection.