The Omega Speedmaster reference 310.30.42.50.01.002 features a stainless steel case with a diameter of 42mm. This model, introduced in 2021, is powered by the manual winding Omega caliber 3861. It includes a black dial and functions as both a chronograph and a chronometer, ensuring precise timekeeping. The watch is designed for those who appreciate the blend of functionality and classic design in a timepiece.