Produced by SJ .PPFactory: The top choice for quality and value .Patek Philippe Nautilus Series CM6 Ref. 5726 Nautilus Perpetual Calendar Watch, integrated moon phase .Featuring the signature porthole-shaped case design of the entire Nautilus series, crafted with a consistent combination of satin finish and polishing techniques that create a striking contrast. This 1:1 replica perfectly reproduces every detail of the genuine watch, with a deep dial adorned with horizontal embossed patterns that radiate from the center outward. The dual windows for the day and month, along with the date window, offer high readability with black text on a white background. The 24-hour display dial, accompanied by a moon phase indicator, adds a touch of elegance. Overall, it exudes a unique and sophisticated charm, making it one of the most beautiful Nautilus models. It is powered by the 324S QA LU 24H/303 automatic movement, featuring a 21K gold rotor for enhanced winding efficiency, and exquisite detail in the Geneva stripes and fish scale patterns beneath the ruby bearings. S1 is a refined recommendation for a multifunctional men's mechanical watch.