The strap of the Black shark common series is made of a soft and comfortable rubber strap with Tang Buckle. The case of Aurora Black Shark common series watches is used pure imported 316L stainless steel PVD. It is a 41.8mm dial. Aurora Black Shark common series wristwatch uses super luminous heteromorphy as the time scale. Durable sports watches for running, cycling, gym, swimming, and outdoor sports. Choose the model that best suits your needs. Black shark Watch is the Best Skeleton Watches. It has a stainless steel case, a luminous display, a skeleton case back, and a sapphire crystal window. If you like to see the technical side of things, this would be an excellent watch for you.