OMEGA Speedmaster Moonphase

The Omega Speedmaster Moonphase, reference 304.23.44.52.13.001, is a chronograph with a 44.25 mm case in steel and gold. The case is 16.85 mm thick and measures 50 mm lug to lug. A scratch-resistant sapphire crystal with anti-reflective treatment on both sides covers the brown dial. The movement is the self-winding Omega calibre 9904, certified as a Master Chronometer, with a 60-hour power reserve. The dial carries a date display, small seconds and a tachymeter scale. Omega rates the case to 100 metres. The case has a display back. A brown leather strap is fitted to the watch.