After a decade of development, TAG Heuer's revolutionary carbon hairspring makes its way to market in the brand's two most iconic watches.
In 2001, Ulysse Nardin launched the Freak, the world’s first watch to feature silicon components in its escapement.
A quarter century later, and silicon is the hairspring material du jour for most high-end brands, including Rolex, Omega and Patek Phi... [3917 chars]