The Electron Series is Tsar Bomba’s most technically advanced collection — full carbon fiber construction meets NH35A automatic precision in a watch that was built for those who understand that aerospace engineering belongs on the wrist, not just in the sky. Ultra-lightweight, ultra-strong, and unmistakably bold, the Electron Series delivers the kind of watch that people ask about.The flagship Electron-Full Carbon Fiber Edition TB8401CF features a carbon fiber case, carbon fiber strap, sapphire crystal, and exhibition caseback — all at a weight that will surprise you the moment you put it on. Explore the Electron Series and experience what happens when watchmaking gets serious about materials science.