Omega Speedmaster Moon Professional Co-Axial Master Chronometer Chronograph - 42 mm Steel Case - Black Dial - 310.30.42.50.01.002 Silver 36mm stainless steel case

36mm stainless steel case

pioneering technology

black subdials

featuring a screw-down back and crown fortified with a triplock triple waterproofness system

Omega Speedmaster Moon Professional Co-Axial Master Chronometer Chronograph - 42 mm Steel Case - Black Dial - 310.30.42.50.01.002 Silver 36mm stainless steel case42 mm steel case, sapphire crystal back, anodised aluminium bezel ring, domed scratch resistant sapphire crystal with anti reflective treatment inside, black step dial, Calibre Omega 3861 manual winding chronometer movement with chronograph and small seconds, approximately 50 hours of power reserve, steel bracelet. Water resistant to 50 metres (167 feet).