Niello is a technique of engraving and inlaying silver or copper into a design. It is an ancient method of adding color and texture to a watch, and is often used to create intricate floral and geometric designs. The process involves engraving lines into the metal and then filling in the designs with a black mixture of silver, copper, and lead sulfide. This creates a contrast between the engraved lines and the black niello, making the design stand out. Niello is a beautiful, eye-catching technique that can add a unique look to any watch.
