Omega Speedmaster Professional Moonwatch reference 311.30.42.30.01.006 from 2020. This model features a 42mm stainless steel case with a black tachymeter bezel and black dial. Fitted to a stainless steel bracelet. Powered by the Omega calibre 1861 manual-wind movement. Supplied as a full set with original box, papers and all accessories. Presented in unworn condition.