Breguet is in the vanguard of modern research and development Last year at the Basel fair, Breguet presented the Marine5837 Tourbillon Chronograph. However on reflection, the brand realised there was room for improvement. So the design and watchmaking team went back to the workshop and this year revealed the newly improved Marine5837 Tourbillon Chronograph. The use of silicon instead of metal to make watch parts is a recent innovation in horology, and Breguet was one of the first brands to invest in the research and development of this material. Silicon is favoured over metal for numerous reasons - it is hardy, it gives designers more freedom to play with the shape of components and crucially it reduces friction between the lever and escape wheel which eliminates the need to lubricate these parts with oil. The new version of the Marine5837 is fitted with a silicon escapement and, according to the brand, it is the first tourbillon to contain an escapement made of the material. A spokesman said: 'We want to lead the technology in the tourbillon because we invented it.' A hand-wound Breguet Calibre 554.3 powers a tourbillon regulator which is visible through an opening at the top of the dial and which displays an upper bridge and pillars made from titanium. The balance spring, escape wheel and lever are made from silicon. One of the problems Breguet had in the development of a silicon balance spring was keeping the watch rate steady in all temperatures. It developed a spring with components that improved the movement's isochronism. Previously, these results were only achieved with Breguet's overcoil spring. The components are patent-pending. The watch has an 18-carat pink gold case and a black rhodium plated dial. A hand-engraved engine-turned wave pattern hints at the origins of the Marine collection. Chronograph totalisers sit at three o'clock and six o'clock. The watch comes with a pink gold bracelet or black rubber strap. Breguet said the new version of the watch served as an example of the brand's integrity. Silicon is a more expensive material to work with, but the brand will not increase the price for the new version of this model. There are two additional extensions to the Marine series. The Marine5827 chronograph gets a new pink gold case, adding to the existing versions that feature white gold and yellow gold. The latest chronograph gets an engine-turned dial, and applied numerals in pink gold, as well as traditional Breguet open-tipped hands also in pink gold. Like its predecessors, the watch dial features a 12-hour totaliser at six o'clock, and there is a sub-dial for running seconds at nine o'clock. The inner workings of the watch are revealed through a transparent case back. The Marine5829 Haute Joaillerie Chronograph assumes the main features of the Marine5827, including an engine-turned dial, only this time in mother-of-pearl. A self-winding mechanical movement is housed in a case which is set entirely with baguette-cut diamonds, and 186 stones embellish the bezel, the lugs, the frame, the push-pieces and the crown.