Showcasing a legendary design that has been updated with a new and innovative design, this OMEGA Seamaster Diver 300 will handle anything the ocean throws at it. Extreme accuracy is guaranteed by the master chronometer movement. At A Glance  Integrated black rubber strap 42mm stainless steel case with a black ceramic uni-directional rotating bezel and 300m water resistance Helium escape valve Domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides White dial with wave pattern and luminous baton hour markers Date window at 6 o’clock Powered by the METAS Certified Master Chronometer Caliber OMEGA 8800 self-winding movement Minimum power reserve of 55 hours