310.32.42.50.04.002Ref

Introduced in 2024 within the updated Moonwatch Professional range, the Speedmaster 310.32.42.50.04.002 pairs a white dial with a 42 mm stainless steel asymmetrical case (47.50 mm lug-to-lug, 13.18 mm thick, 5 bar water resistance) and a black anodised aluminium bezel with dot-over-90. The front uses scratch-resistant sapphire with inner anti-reflective treatment, while the sapphire caseback exposes the movement; the white lacquered step dial, inspired by fourth-generation Speedmasters, carries applied markers and logo, Moonwatch hands, and tri-compax registers. It is powered by the manual-winding METAS-certified Calibre 3861 (3 Hz, ~50-hour reserve, 15,000 gauss, rhodium-plated) and comes on a black leather strap with foldover clasp.