OMEGA Speedmaster Moonphase

Omega's Speedmaster Moonphase, reference 304.63.44.52.01.001, measures 44.25 mm in rose gold. The case runs 17.05 mm thick with a lug-to-lug of 50 mm, giving it real presence on the wrist. Inside is the self-winding calibre 9905, a Master Chronometer movement with column wheel, Co-Axial escapement and a silicon balance-spring, certified by METAS and resistant to magnetic fields up to 15,000 gauss. It stores 60 hours of power reserve. A sapphire crystal with anti-reflective treatment on both sides covers the black dial. As a chronograph it pairs a moonphase display with small seconds and a hand-set date, and the sapphire caseback shows the movement. The black alligator leather strap closes with a foldover clasp in rose gold. Water resistance is rated to 100 metres.