310.32.42.50.04.001Ref

Debuting in 2024, the Speedmaster Moonwatch Professional 310.32.42.50.04.001 is a white-dial variant within the Moonwatch Professional collection, set in a 42 mm stainless steel asymmetrical case (47.50 mm lug-to-lug, 13.18 mm thick, 5 bar water resistance) with a black anodised aluminium bezel and dot-over-90. Sapphire crystals are on the front and caseback, the latter revealing the movement, and the white lacquered step dial, referencing fourth-generation Speedmasters, has applied markers and logo, Moonwatch hands, and a tri-compax chronograph. Power comes from the manual-winding, METAS-certified Calibre 3861 (3 Hz, ~50-hour reserve, 15,000 gauss, silicon balance), and the watch is fitted with a black rubber strap and foldover clasp.