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, perfectly replicating functions! .3. Calendar, day, month, moon phase, and all other features are fully functional and operational. Available with options for steel, rubber, and leather straps.4. The case is made of 316L stainless steel, with CNC high-precision processing, matching the density of the original! .5. The dial is perfectly presented in the original color! .6. The case set consists of three parts: bezel, case, and back cover, perfectly showcasing brushed craftsmanship, merging quality and beauty!