The strap of this product is separated from the dial, which simplifies the production and manufacturing process, provides convenience for recycling, and follows the concept of product environmental protection. It can provide people with comfortable and convenient use experience. Both sides of the strap create different colors or patterns with the help of the printability of paper. Users can choose one strap according to their mood or preferences to meet the needs of a multi-style strap. In addition, the strap can be replaced separately and regularly, and the operation is convenient and simple. The two sides of the strap are printed with different colors, and the popular gradual color change makes the whole product simple, lively and dynamic. The product meets the characteristics of consumers' attention to personalization, and brings fresh experience to users as much as possible under the premise of simplifying the design process and focusing on environmental protection, which is in line with the trend of young people.