OMEGA Speedmaster Moonphase

The Omega Speedmaster Moonphase, reference 304.30.44.52.01.001, is a chronograph with a 44.25 mm steel case. The case measures 16.85 mm thick and 50 mm lug to lug. Calibre 9904 is a self-winding movement with a column wheel, a Co-Axial escapement and a 60 hour power reserve. The calibre is Master Chronometer certified. A sapphire crystal with anti-reflective treatment on both sides covers the black dial. The functions include moon phase, small seconds, date and tachymeter. Omega rates the case to 100 metres. A steel bracelet with a foldover clasp that has a comfort setting is fitted to the watch.