The Watch that conquered the World's Highest Peaks

40mm Trip-Tick®️ case design

Water resistant 300M

38-hour minimum power reserve


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This model is discontinued. Search available models, or to discuss Bremont timepieces with our team.

A watch that is at home in the depths of the ocean or at the top of the highest peaks on Earth. It has accompanied some of the greatest mountaineers of our time on their expeditions to conquer the 14 peaks above 8,000m, including Nirmal 'Nims' Purja and world record setting ambassador, Kristin Harila.


    A diver's tool watch that embodies Bremont’s engineering DNA and spirit of adventure, it has the capability of reaching at least 300m in dive depth and features the most compact case design of the Supermarine Collection at 40mm.

    At just 13mm in height from sapphire crystal to case back, its uni-directional ceramic rotating bezel and Super-LumiNova® application to the dial, provides excellent legibility and accurate timekeeping during your dive.

    The Bremont S300 is powered by a beautifully finished and chronometer rated BE-92AE automatic movement.
    Bremont Supermarine Type 300 White
    S300 Diving Watch
    Bremont Chronometers Watches | Mens | Supermarine Nato / Regular (15-19cm) S300
    Bremont Supermarine Type 300 White

    Tech spec

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    British Made


    It is not completely unexpected to find that the world sets its time by Greenwich and not by Geneva. Whilst Geneva and Switzerland may be producing the vast majority of luxury wristwatches today, this certainly wasn’t always the case. In 1800 half of the world's watches, around 200,000 pieces a year, were produced on British shores by British watchmakers, which is an incredible statistic. Another wonderful statistic is that probably over 60-70% of the innovation in a modern day mechanical watch has come from Britain, including every major escapement design. Bremont's mission has always been to play a part in bringing back watchmaking to British shores.

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