Glossary

Perlage is a decorative technique used in high-end watchmaking, particularly on the movements of mechanical watches. This intricate hand-finishing method involves creating tiny, overlapping circular patterns on surfaces such as bridges, plates, and even the inside of the caseback. These circular motifs not only enhance the aesthetic appeal of the movement but also serve a functional purpose by helping to prevent corrosion. 

The patterns are created using a rotating tool, often by hand, and require a delicate touch to achieve uniform, concentric circles. While primarily decorative, the quality of the perlage can serve as an indicator of the overall craftsmanship of the movement. Well-executed perlage demonstrates the skill of the watchmaker and often signifies attention to detail in the finer aspects of the timepiece.