Official synchronization of the 2025 new Blancpain Fifty Fathoms 5100 series. Official size: 38mm. High-tech satin finish with a brilliant sheen, high hardness, colorfast, stain-resistant, and highly wear-resistant. The case and bezel are perfectly matched with a strong three-dimensional effect, ensuring they never fade. The surface feels smooth and is gentle on the skin. The crown and pushers feature neat engravings with superlative craftsmanship. The buckle has a satin finish, with meticulous polishing inside and out. The pin of the buckle has multiple beveled edges, perfectly replicating the details of the genuine product.The movement utilizes the 9015 caliber modified to Cal. 1153, with the color of the bridge's jewel bearings consistent with the original, achieving true purity in color and making the bridge unmistakably authentic. The one-piece bridge not only closely resembles the original in appearance but also better protects the movement, ensuring greater stability. After grinding, the bridge undergoes further chamfering to avoid copper shavings from falling into the movement and causing it to stop.The dial features a calendar of the same size as the original, with 100% Swiss-imported C3 luminous material, boasting brightness and longevity that rivals the genuine product. Water resistance has been rigorously tested with 100% compliance to three levels of waterproofing before leaving the factory.