White shell and black shell Breitling/Pilot Legend Aviation Series, a classic, simple and elegant design, fashionable and elegant, automatic mechanical watch, it is equipped with 2824 movement, accurate travel time, stable performance. Diameter 41m/10.74m, digital scale pointer , luminous indication, calendar display, stainless steel two-way rotating chronograph bezel, made of stainless steel, ultra-thin design! It also has mechanical watches with various functions such as waterproof and shockproof,