AP Royal Oak 26574ST Series Men's Watch! A perfect experience of elegance and individuality! .1. Diameter: 41MM! .2. Equipped with a customized Cal. 5134 movement, flawlessly restoring all functions! .3. Calendar, day, month, and moon phase features are all fully functional and operational. Available options include steel bracelet, rubber strap, and leather strap.4. The case is made of 316L stainless steel, with the entire case processed with high precision CNC machining, ensuring density matches the original! .5. The dial perfectly showcases the original color! .6. The case consists of a three-piece set: bezel, case, and case back, with the overall angles perfectly reflecting the brushed finish, a harmonious blend of quality and beauty!