Bold, dramatic, and luxurious, this 18ct gold OMEGA Constellation Automatic Watch is designed to stand out. A modern update of a timeless design it impresses with its luxury finishes as well as its Master Chronometer movement. At A Glance  Presented on a black leather strap 41mm 18ct gold case with black ceramic bezel and 50m water resistance Domed scratch resistant sapphire crystal with anti-reflective coating on both sides Black sun-brushed dial with 18ct gold baton hour markers Date window at 6 o’clock Anti-magnetic. Protected against magnetic fields greater than 1.5 tesla Powered by the OMEGA Co-Axial Master Chronometer Calibre 8901 automatic self-winding movement 60 hours power reserve