Introducing the latest BLK Rolex Yacht-Master series, available in 40mm and 42mm, featuring a calendar that supports both forward and reverse adjustments! The watch is equipped with an exclusive customized 3235 integrated movement, ensuring stable and reliable performance. Quality assurance is guaranteed.1. Case: The size and thickness are consistent with the original, making it indistinguishable from market versions at first glance.2. Dial: Premium Swiss ice blue luminous material, with a delicate texture and accurate color match; it shines brightly in the moonlight, making it the king of the night!.3. Glass: Sapphire glass with a 2.5x magnifying effect, providing excellent clarity and making the font more legible.4. Strap: Fluoroelastomer strap that perfectly fits the lugs, offering maximum comfort for the wrist; customers who order the welfare strap version will receive a pair of natural rubber straps as a bonus, ensuring top-notch quality. Every detail is crafted with BLK's dedication and ingenuity.5. First-class craftsmanship is evident, marked by a unique BLK serial number and distinctive design. Quality assurance is provided, ensuring a high-quality, premium product!