AP Royal Oak 26574ST Series Men's Watch! A perfect experience of elegance and personality! .1. Diameter: 41MM! .2. Equipped with a custom Cal. 5134 movement, perfectly replicating all functions! .3. Calendar, day, month, moon phase, and all other functions are fully operational. Available in steel bracelet, rubber strap, and leather strap options.4. The case is made of 316L stainless steel, with the entire casing processed with high precision CNC, matching the density of the original! .5. The dial perfectly presents the original color! .6. The case set consists of three parts: bezel, case, and back cover, showcasing a perfect brushed finish at all angles, blending quality and beauty!