[ROLEX Watches] The AET Cosmic Chronograph Daytona watch is not only light to wear Hard exterior And each watch has a unique design Watch Size 40X13. 98 Strength Cast Ceramic Rolex's Unique Style Exclusive market High-quality ceramic material is made of the ring opening including the bottom cover Note: Liner-less design, bottom cover and rose-free design details are made by hand chamfered and polished a unique texture The strap is made of high-quality fluorine rubber material The texture is comparable to the genuine adopts the precise and mature Dandong 7750 movement Perfectly realize the powerful functions of genuine products