With the small size of the watch, fine dust can be conspicuous. Dust can be removed by post-processing the image, but it is time-consuming, so it is best to remove it before shooting. One would think of using a hair dryer or vacuum cleaner to remove dust. Still, the small size of the watch makes a vacuum cleaner unsuitable. Although strong suction can suck up all the dust, the subject may be affected by the suction and move, or the set may be damaged, etc.
