Watches on the market roughly divided into two categories of machinery and quartz electronics. Mechanical watch additional features include automatic winding, calendar display, multi-pin instructions. Quartz watch more additional functions, especially the digital display of the electronic form, the appearance of decorative features is colorful. There are high value-added sapphire crystal glass, ceramic case, tungsten steel case, diamond drilling technology. From wearing style and requirements, can be divided into the dress table, casual table, dress casual table, sports watch, professional watch several types. In general, different occasions should wear different styles of watches. From the perspective of the wearer can be divided into male models, female models, neutral models, child models.