JB Production .JB Factory Sales Artifact Hengbao Hublot V3 Upgrade Version HB1. The upgrades are as follows: .The upgrade features an original casing with a molded shell, eliminating the use of plastic for the side lugs. It is paired with an upgraded true tourbillon movement that enhances shock resistance, addressing issues found in the market s standard versions, such as low stitching quality and high return rates for repairs. This model restores 90% of the original structure, with a case diameter and laminated sapphire crystal watch face that distinguish it from those produced by smaller factories.The specific selling points can be summarized as six high elements: .1. High Precision: True tourbillon movement, high end and stable.2. High Stitching: The case, back cover, and side lugs are tightly and seamlessly joined. This upgrade features steel side lugs, distinguishing it from the market s plastic versions.3. High Restoration: 90% restoration of the original structure, with a case diameter that stands out.4. High Shock Resistance: The movement has enhanced shock resistance with a breakthrough principle, resulting in an extremely low return rate.5. High Strength: The lens is made of scratch resistant sapphire with a polyethylene explosion proof film, capable of withstanding strong impacts.6. High Aesthetics: The cool design is full of style, featuring a fully skeletonized movement that exudes a mechanical feel.The Hublot Big Bang Men s Series BIG BANG watch is a must have and a top luxury gift recommendation. Please recognize JB s exclusive quality.