The V4 upgraded version features original replica buttons and has been meticulously crafted for the Patek Philippe super complicated chronograph series! This is a labor of love, with attention to detail as follows: .1: The team has spent over two years on careful design, sparing no expense, daring to be the first, striving for perfection, overcoming numerous challenges, and breaking through multiple technical bottlenecks. The movement model is the upgraded CH 29-535, showcasing exquisite hollowed plates with stable quality! .2: Dimensions are 41mm in diameter and 11mm in thickness! .3: The case is made of 316L stainless steel with a nano platinum plating technology, adorned with South African diamonds on the bezel, further emphasizing its noble and elegant appearance. The strap is crafted from first-layer Italian calf leather, adding to its luxurious and high-end feel! .You deserve to own it!