Unused in 2026, Hublot BIG BANG series, model: 431.CI.1370.RX. Men's mechanical wristwatch. The case diameter is 43mm, with a black carbon fiber case, a checkered dial, an automatic mechanical movement, three-eye chronograph and date display, a transparent back design, a rubber strap, and all original anti-tamper films are present. The tag, packaging box, warranty card, and accessories are all complete. It was purchased from a counter and is guaranteed to be genuine. The timekeeping is normal and it is well preserved.