Bremont divers, the Supermarine S500 and S2000, maintain the Bremont aviation DNA by encasing the beautifully finished chronometer tested movement in an anti-magnetic Faraday cage. Also protecting the BE-36AE movement is a patented anti-shock case mount. The Supermarine S500's case is 43 mm in diameter providing water resistance to 500 metres (although tested to way beyond these depths) and a sapphire bezel offers extraordinary luminosity in low light conditions. The Supermarine S2000 has been designed with professional divers in mind; we have increased the size to 45mm and re-engineered the case to withstand an increase in depth of 2000m or 6560ft. The cases of both S500 and S2000 also have an automatic helium escape value for professional diving requirements.