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 ...

If you are designing a product that requires any sort of smart-motion precision, spring parts that apply constant force or constant resistance are key mechanical design elements to consider. Two of ...