SJ Production presents the upgraded version of Patek Philippe. The R29 team has spent 9 months meticulously designing this product, daring to innovate and striving for perfection, breaking through multiple technical bottlenecks.1. Pot Lid Glass: The latest exclusive pot lid glass material in the market features an extraordinary 3D effect and ultra-thin craftsmanship with a diameter of 42mm.2. Movement: It utilizes the original 9015 movement, with a frequency of 28,800 vibrations per hour, ensuring zero defect quality.3. Strap: Paired with Italian cowhide, it offers a comfortable and snug fit on the wrist! .Exclusive quality guarantee! Crafted by a large manufacturer! SJ enthusiastically recommends this men's mechanical watch.