It is designed based on the styles of IWC Portugal and Portofino. The top leather of this product is crocodile leather with bamboo pattern, the bottom leather is Hermès swift, the core material is super fiber, and the oil edge technology is used. , the oil edge is smooth. This watch strap uses Jiyou crocodile leather bamboo pattern on the strap. In terms of water resistance, sweat resistance, wear resistance and other performance indicators, it far exceeds the standards of luxury goods groups and is 10 times the EU standard. It is a luxury watch. 3 times that of the product group.