Bremont Watch Supermarine S301/BK/R Stone Canvas Nato. A true divers instrument, this Bremont Supermarine S301 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 300 metres. This Bremont Supermarine S301 watch continues to impress with its BE-92AE automatic chronometer certified movement which boasts a power reserve of up to 38 hours and a handy date feature at 3 o clock. The movement is kept enclosed within a 40mm stainless steel Bremont Trip Trick case with a scratch resistant DLC treated case barrel. The classic metal dial is decorated with Superluminova coated numerals and markers as well as nickel satin hands also decorated in the luminescent substance allowing for effortless readability even in the dark depths of the ocean. To complete this Bremont Supermarine watch, a NATO strap and stainless steel buckle.