Binger Cool Motion Automatic Black B-10003GBinger Cool Motion Series Fashion Domineering Hollow Flywheel With functions of week, calendar and month. The watch is not only a timing tool, but an art treasure. Binger Original Mechanical Movement The rotation of the balance wheel during the wearing process is used to drive the mainspring to generate power, thereby promoting the work. The complex craftsmanship and the elaborate design make the movement have a higher appreciation value. 316L