The Omega Speedmaster Moonwatch ref. 310.30.42.50.01.001 was introduced in 2020. This new-generation Moonwatch is powered by caliber 3861. The case is stainless steel with an aluminum tachymeter bezel insert. The dial is black. Presented on a brushed five-arched-links-per-row bracelet, this 42 mm Moonwatch in stainless steel features hesalite glass on the front and an embossed Seahorse medallion on the caseback. Inspired by the 4th generation Speedmaster style worn on the moon, it also includes an asymmetrical case, black step dial and the famous dot over 90 on the anodised aluminium bezel ring. The watch is driven by the OMEGA Co-Axial Master Chronometer Calibre 3861, which powers the small seconds sub-dial, 30-minute recorder and 12-hour recorder, along with the central chronograph function.