Watches typically require the use of tiny screws to secure various components, such as the watch face, watch band, watch crown, and other parts. These screws usually have precise sizes and threads and require the use of a specialized screwdriver to install. 

When installing watch screws, it is important to ensure that the size and thread design of the screws match the required size and to handle them carefully due to the need for lightness, thinness, and small size to avoid damaging the precision of the watch.