Hublot Classic Fusion 521 Series Men's Watch features a case made from finely polished materials, identical to the original, with a diameter of 42mm and a thickness of 12.05mm. It is equipped with a Japanese-imported quartz 5-hand chronograph energy-saving movement, ensuring a reliable performance with zero repairs needed. The dial offers over a hundred choices in various colors, patterns, and designs, consistent with the original. The strap is made from imported rubber and top-layer cowhide, complemented by an original folding buckle.