With a certified Master Chronometer that\'s resistant to magnetic fields reaching 15,000 gauss and approved by METAS, this OMEGA Seamaster AquaTerra Automatic Chronometer Men\'s Watch guarantees both superb precision and outstanding style. At A Glance  Fastened with a brushed and polished stainless steel bracelet 41mm stainless steel case with a polished bezel and 150m water resistance Scratch-resistant sapphire crystal Grey dial with horizontal stripes and baton hour markers Date window at 6 o’clock Powered by the OMEGA Co-Axial Calibre 8900 Master Chronometer self-winding automatic movement Minimum power reserve of 60 hours