310.63.42.50.01.001Ref

Debuting in 2021 within the updated Moonwatch Professional collection, the ref. 310.63.42.50.01.001 presents the Moonwatch in Sedna Gold on a black calf leather strap with calf lining and a Sedna Gold foldover clasp. The 42 mm asymmetrical Sedna Gold case (approx. 47.50 mm lug-to-lug, ~13.18 mm thick) has a black ceramic bezel with dot-over-90 tachymeter, sapphire front and display caseback, and 5 bar water resistance, while the black stepped dial follows the fourth-generation Speedmaster design with applied Sedna Gold hour markers, Omega logo, Moonwatch-style hands, and the characteristic Moonwatch chronograph configuration. Inside is the manually wound Co-Axial Master Chronometer Calibre 3861 (METAS-certified, 3 Hz, ~50-hour reserve, free-sprung silicon balance, anti-magnetic to 15,000 gauss), visible through the sapphire caseback.