For the first time ever, TAG Heuer mathematicians, physicists and chemists have developed a carbon balance-spring. Produced using a natural gas, it governs the oscillations of the balance. This extremely complex part can withstand shocks, magnetic fields and extreme temperatures.
As the true heart of a mechanical watch, the carbon balance-spring requires unique know-how. Created and assembled by TAG Heuer watchmakers, its supreme quality ensures optimum precision while improving timekeeping performance.
The balance-spring’s geometry and its perfectly concentric oscillations give the watch additional precision. This is then enhanced by pairing it with a balance made from an aluminium alloy that reduces the friction between the surface of the carbon balance-spring and air flow.
An unprecedented innovation
In addition to being the first watch to be regulated by this carbon balance-spring, the TAG Heuer Carrera Calibre Heuer 02T Tourbillon also presents two other complications, which are some of the most prestigious in traditional watchmaking: a tourbillon capable of almost hypnotic movements, which cancels out differences in rate, and a COSC-certified chronograph, which meets the official standards for chronometers.
The piece retains its precision even when dropped. The carbon balance-spring has been shown to resist shocks of 5,000G: the equivalent of a one-metre fall onto a hard surface. By way of comparison, a silicon balance-spring would break, while a metal one would be deformed.
A groundbreaking design
With its nanoscopic hexagonal motif (one million times smaller than a millimetre), the carbon balance-spring reflects the design of the TAG Carrera, the brand's iconic collection since 1963.
Meanwhile the multi-layered dial presents sand-blasted and finely brushed hexagons on the movement plate, which can be seen through the openworked dial. The motif can also be found on the black PVD-treated oscillating weight, revealed through a sapphire case back.
Once again, TAG Heuer demonstrates its groundbreaking spirit by pushing back the boundaries of its know-how, drawing ever closer to perfect precision in mechanical watchmaking.