OMEGA Speedmaster Moonwatch Professional

Omega's Speedmaster Moonwatch Professional 310.63.42.50.01.001 is a chronograph in rose gold with a 42 mm case. The case measures 13.18 mm thick with a lug-to-lug span of 47.5 mm. Inside is the manual-winding calibre 3861, a Co-Axial movement certified as a Master Chronometer and resistant to magnetic fields up to 15,000 gauss, with a 50-hour power reserve. A domed sapphire crystal with inner antireflective treatment covers the black dial. The chronograph includes a tachymeter scale and small seconds, and the caseback is transparent. It comes on a black alligator leather strap with calf leather underside, closed by a foldover clasp in rose gold. The screw-down elements aside, this piece is rated to 50 metres of water resistance.