Snailing is a type of decoration used on watches to add texture and dimension to the surface. It is characterized by a series of lines or ridges on the surface which resemble the ridges of a snail’s shell. This decoration can be used on the watch case, dial, or bezel and is often seen in vintage and antique watches. Snailing is a popular decoration choice due to its unique and intricate look, making the watch stand out from the crowd.