Elliot Brown Watch Beachmaster Nivo Gunmetal Grey PVD Bracelet 0H0-623-B13. Beachmaster is an apex mission timing watch. 4 years in the making and so original its design and functionality was granted a patent. Initially imagined in response to a request at a Royal Marines event then refined into the most capable watch Elliot Brown have ever put their name to. As a nod to its inception via the Royal Marines, Elliot Brown christened it Beachmaster, the Beachmaster is the military officer in charge of the disembarkation phase during an amphibious assault.