Omega Speedmaster Moonwatch 304.23.44.52.06.001. 44mm diameter Stainless Steel case, which is water resistant to 100 meters. OMEGA Co-Axial Master Chronometer 9904 movement. Featuring a Grey sun-brushed dial with gold baton hour markers and moonphase indicator at the 6 o'clock position. Green Ceramic bezel with Ceragold™ tachymeter scale. Grey sub dials. grey leather strap with a polished-brushed foldover clasp. Box and papers dated April 2017.