The overall matte black and bright yellow color combination of the JJF factory watch really has the texture of “Bumblebee” in Transformers. Case size 42mm. The shape of the case still adopts the most iconic 8-sided shape of Audemars Piguet, which is very three-dimensional. It is fixed with 8 screws, making the case very stable. Judging from the appearance of the JJF factory, the replica watch is very layered. Because it uses a forged carbon structure, it is very light in weight. The JJF factory replica watch case is made of a new material, forged carbon. Forged carbon is a new fiber material with a carbon content of more than 95%, high strength, and high modulus fiber. Carbon fiber has many excellent properties. Carbon fiber has high axial strength and modulus, low density, high specific performance, and no creep. , resistant to ultra-high temperatures in a non-oxidizing environment, good fatigue resistance, specific heat and electrical conductivity between non-metals and metals, small thermal expansion coefficient and anisotropy, good corrosion resistance, and good X-ray transmittance. Good electrical and thermal conductivity, good electromagnetic shielding, etc.