The MB Range
The Bremont MB was designed to be quite simply the definitive British aviation chronometer. Tested and designed in conjunction with the iconic British aviation company 'Martin-Baker', three models available: the MBI, MBII and MBIII. The MBI is only available to those individuals who have ejected using an MB ejection seat and can be quickly identified by its red aluminium barrel. The movement is protected by an anti-magnetic Faraday cage and a specifically designed anti-shock case mount. The MB range had to withstand the same rigorous testing as the seats themselves. This included shock, vibration, temperature extremes, and salt-fog tests amongst others.
Working with Martin-Baker, Bremont were able to use the same rigorous testing techniques as the ejection seats themselves, ensuring the watches ability to sustain extremes of heat, cold and altitude as well as aggressive vibration. Here, the MB watch was placed in an altitude chamber to take the watch up to 100,000ft and back to 0ft whilst simulating freezing temperatures.
Alongside extremes of temperature and altitude the MB was subjected to 'Salt Fog' testing which simulates accelerated weathering and harsh corrosive environments to evaluate not only its erosion resistance, but the permeability of its coatings and seals.
The robust nature of the MB is not only down to the testing, but the over engineered design of the watch. Both the movement and mechanism of the Martin-Baker have been designed to 'float' in a controlled manner within the Bremont patented Trip-Tick case by attaching the inner case to it via a flexible ring. In doing so, shocks to the movement are minimised and shock energy absorbed. As well as this, the inner case that encloses the movement of the Bremont Martin-Baker has the function of an anti-magnetic shield. This inner case is made from soft iron and has been created to work as a 'Faraday-Cage' making the Bremont Martin-Baker watch immune to extreme magnetic fields, and a timepiece that has truly been 'Tested Beyond Endurance.'
ACDT - Aircraft Carrier Deck Test
Simulates the level of salt fog and humidity that an aircraft carrier deck would endure during a 6 month tour.
AT - Altitude Test
The watch is taken up to 100,000 feet for 60 minutes before being rapidly brought down again.
ETD - Extreme Temperature Endurance
The watch is held for one day in temperatures as low as -40° C, and then up to +40° C for a further 24 hours.
Shakes and vibrates the watch on the wrist of a test dummy to simulate a 30 year life of a helicopter.
Live ejection launches put the watch under extreme g loads and forces.