OrTWFACTORY, the latest Black Bay Chrono seizure watches of Black Bay Chrono, made of scrub and polishing 316L stainless steel. The diameter is 41mm. The arched dial is full of retro charm. It is perfectly restored!Equipped with the new 7750 machine, the rotation type has a deep waterproof head, the convergence of the essence of diving and racing chronograph watch, which is rich in sports styles and overflowing with retro -nostalgic atmosphere. It also shows the pure tradition of sports chronograph watch!