Hbf Factory V2 Version Hublot HUBLOT Fearless and Bold, simply referred to as HUB. The Big Bang Chronograph V2 features a case made from imported 316 stainless steel, showcasing an explosive design. It is equipped with the modified 7750 HUB1242 automatic movement, offering instant chronograph activation and a one button flyback function, perfectly replicating the original features. The watch includes a secondary weight for enhanced stability and an ultra low return rate. The strap is made of natural rubber from oak trees, providing exceptional waterproofing, softness, and comfort. The crystal is crafted from natural sapphire glass, which is wear resistant, scratch resistant, and flawlessly transparent. As a young brand, Hublot infuses youthful energy into high end manufacturing with its bold personality and unique design, inviting everyone to experience the freedom of youth together.