Bremont watch supermarine s500bl a true divers instrument this bremont supermarine s500 watch was designed by bremont founders nick and giles english to be an amphibious watch they wanted to create a timepiece that not only linked back to their aviation roots but was also a beautiful and effective piece of diving equipment the exquisite manufacturing of this bremont watch means that it has an impressive water resistance of 500 metres this bremont supermarine s500 watch continues to im