Roger Dubuis Wants to Micromelt Your Mind

When it comes to progressive complications, the hand-wound 590-part RD101 Quatuor movement – beating at a frequency of 4x4 Hz (115,200 vph) with its four sprung balances and five differentials – is as progressive as they get… Not to mention outstandingly fast and effi­cient, since it achieves instantaneously what the tourbillon takes a full minute to accomplish – namely compensating...