Omega Speedmaster 304.30.44.52.01.001

Omega Speedmaster Moonphase Chronograph Watch 304.30.44.52.01.001

Omega Speedmaster Moonphase Chronograph Watch 304.30.44.52.01.001. Automatic self-winding chronograph movement with column wheel mechanism and Co-Axial Escapement. Silicon balance-spring on free sprung-balance, 2 barrels mounted in series, automatic winding in both directions to reduce winding time. Rhodium plated finish with exclusive Geneva waves in arabesque. Brushed/Satin finished stainless steel case 44.25 mm in diameter. Polished finished beveled edges. Transparent exhibition sapphire crystal case back. Omega logo on a crown. Black bezel with tachymeter scale. Scratch resistant sapphire crystal with anti-reflective treatment on both sides. Black dial luminous indexes and hands. Two Chronograph sub-dials -- date/small second and a 12 hour/60 minute. Moonphase display at 6 o'clock. Stainless steel bracelet with brushed outer links and polished center links and edges. Fits 7 1/2" wrist.