Watches are the most precise mechanical devices on the planet. Bremont aims to keep it that way. Our watches are subjected to rigorous testing procedures. For example, chronometer certifications take 15 days to complete over several different temperature ranges and watch positions. The average daily variation rate must be between -4 and +6 seconds. With 86,400 seconds in a single day, it means every single Bremont watch is 99.998% accurate.
Our ethos is brought to life in the design, specification and quality of the materials we insist upon. For example, we only use the finest Glucydur balance wheels as opposed to the ‘elaborate’ nickel equivalent found in many high-end luxury watches. Nine layers of anti-reflective treatment are applied to both sides of the sapphire crystals and B-EBE2000 hardening technology makes Bremont watch cases an average of seven times harder and more scratch-resistant than competitors’. The result is a distinctive range of elegant watches. This uncompromising quality is reflected in the 3-year guarantee.
Trip-Tick® Case Construction
All Bremont watch cases use Bremont Trip-Tick® construction consisting of three parts:
- The hardened steel bezel element, containing the sapphire crystal.
- The central body section, consisting of a titanium or DLC treated middle barrel.
- The steel and crystal case back.
The separate middle section offers flexibility in both durability and design. It allows us to manufacture cases from different metals, such as titanium, to alter the watch’s weight. DLC, meanwhile, adds to the variety by using contrasting colours to distinguish between models.
INSIDE THE CASE
Many Bremont watches have been designed from a clean sheet of paper. New bezel technology designed and built in-house is now integrated into a number of models such as the MB. The bezel rotates while gliding on a series of four ball bearings. These bearings knit into the gearing of the bezel to produce a most satisfying click for every minute rotated.
Designed by Bremont initially for the MB range of watches, our unique rubberised movement mount encloses the inner workings. A flexible ring then connects the mount to the outer case, absorbing shocks and allowing the inner case and movement to float.
Anti-Magnetic Faraday Cage
A number of Bremont models are designed to withstand the detrimental effects of magnetism on a watch’s movement. With a limited amount of space available, this is achieved by encasing the movement in a soft-iron Faraday cage. Any potentially harmful magnetic fields are then routed around the movement.
Bremont B-EBE2000 Watch Case Treatment
All Bremont watches are treated for hardness with B-EBE2000 technology. During this special stage in the case production the metal is heat-treated and defused with carbon, then bombarded with electrons. The process dramatically increases the hardness and scratch resistance of the stainless steel. On the Vickers’ scale of hardness, for example, B-EBE2000 produces a watch case with a value of 2000Hv - approximately seven times that of the normal stainless steel used for watch cases.
Sapphire Watch Crystals
Our convex sapphire crystals come with a Mohs hardness rating of 9. That’s also the equivalent to 2000Hv on the Vickers’ scale. Untreated crystals can allow light to reflect back, significantly affecting the legibility of the dial. So antireflective coatings are vapour-deposited to both sides of the glass in a vacuum environment, reducing reflections to less than 0.5% for optimum legibility.
Helium Escape Valve
The Bremont Supermarine range features a helium escape valve. This springloaded single-direction valve is activated when the differential between the inner and outer pressure reaches a critical level. This results in the release of the gases trapped in the watch case. Watches with helium escape valves are pressure tested at our workshop.
Bremont carefully applies as many as 15 to 20 coats of Super-LumiNova® paint to a range of dials in our collection; it ensures optimal visibility in the poorest of lighting conditions.