This Omega is 44.25 mm black ceramic case, transparent back, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black dial with rotating ALINGHI logo on the 6 o'clock subdial, Calibre Omega 1865 manual-winding chronograph movement, approximately 48 hours of power reserve, black perforated rubber strap with red stitching and red rubber interior. Water resistant to 50 metres (167 feet).