OMEGA Speedmaster Moonphase

The Omega Speedmaster Moonphase reference 304.33.44.52.03.001 has a 44.25 mm steel case with a yellow gold bezel and a blue dial, fitted on a leather strap. It is powered by the automatic Omega calibre 9904, a Master Chronometer movement offering 60 hours of power reserve, and combines a chronograph function with a moon phase display and tachymeter scale. The case is fitted with a sapphire crystal, a display back, and a screw-down crown, and is water resistant to 100 metres.