From the early days of forging carbon fiber Royal Oak Offshore Alinghi in 2007, more and more brands have joined the carbon fiber trend in different ways. Although some brands (especially Hublot) choose to keep the traditional carbon fiber weave, in some cases aluminum is used to add color to the carbon fiber to add color to the case material. On the other hand, with the help of North Thin Ply Technology, Richard Mille developed Carbon TPT, a unique carbon composite material whose strength is significantly higher than traditional carbon fiber. Richard Mille (Richard Mille) the pinnacle of carbon watches, the RM 50-03 McLaren F1 watch, including the strap, weighs only 38 grams, which is the lightest second hand tourbillon chronograph on the planet.