White gold case AP Audemars Piguet Royal Oak frost gold version, 37mm King of Steel "Audemars Piguet 15400 series (frost gold customized version) is not available in large quantities, the most important strap for steel strap watches, OMF factory original watch The open mold makes the strap have a delicate brushed pattern and will not cut your hands sharply. The thickness and joints of the strap are consistent with the original ones, and the details are meticulous. The movable buffer design at the head of the strap connecting to the watch head is consistent with the original product, making it closer to the wearer. The wrist is more comfortable. The switch design and texture of the watch buckle and the carving process of the watch buckle are consistent with the original. The OMF factory restores the original literal workmanship and color details and puts them together with the original without flaws. The movement is the soul of the entire watch and the key to distinguishing authenticity. The key point is to perfectly copy the original movement, with accurate travel time. The central axis of the pointer is a solid central axis, which is consistent with the original. The hands are polished to make them burr-free. The sapphire mirror glass adopts double-sided high-transparency treatment to make it clearer. It is an ingenious mechanical watch.