When master watchmaker François-Paul Journe created his Chronomètre à Résonance timepiece 20 years ago, it was the first wristwatch to ever achieve the phenomenon of natural chronometric resonance ...

Grand Seiko has released its first mechanical complication watch, the Kodo Constant-force Tourbillon, which is the first timepiece to combine a tourbillon and a constant-force mechanism into a single ...

Grand Seiko made its debut at Watches & Wonders this spring by debuting its first tourbillon and its most complicated watch ever, the Kodo Constant-Force Tourbillon. It was among the luxury brands ...

But first, let’s get you up to speed on the background of this technology. Pruniaux likens the idea to running a marathon. The average person might start running quickly at the beginning and then get ...