All accessories of the entire TANK MUST de Cartier series (medium size 33.7*25.5mm) can be used interchangeably with the original ones! Here is especially the production of the crown. The iconic "bread-shaped" raised dot beads all over the crown are three-dimensional and clear, making it easy to grasp and adjust. The "bullet"-shaped crystal on the top of the crown is exclusively made of Brazilian raw ore. The integrated molding polishing composite machine processing developed by Laoyou Gemstone Factory for many years is time-consuming, labor-intensive, material-intensive, and extremely costly! Effectively ensures that the appearance of each product is consistent with the original product! The sapphire glass mirror is refractive when viewed from the side and has a magnifying effect! ,