SATIN FINISHING

Satin finishing is a surface decoration technique consisting of parallel lines created by abrasion. This type of finishing is widely used to decorate various watch components.

Applications

Whether it is the case, bracelet, dial, or hands for the exterior, the upper surface of time-setting and winding mechanism components, or the edges of bridges, satin finishing is omnipresent.

Eligible Materials

Most metals can undergo satin finishing, and various tools and abrasives are used to achieve the desired result. Commonly employed materials include abrasive papers, burnishing stones, lapping pastes, or small grinding wheels for micromotors.

The artisan selects the abrasive grain size based on the material to be finished and the intended result. Coarser grains produce more pronounced lines and a matte surface. Finer grains create delicate lines and a more polished appearance.

Regardless of the type of support or abrasive used, it is crucial to ensure the abrasive grain is perfectly uniform and clean. Impurities can lead to uneven grooves and compromise the finish.

Frequent Use

The edges of many components, such as bridges, are often satin-finished. This process, sometimes referred to as “stretching the traits” or “flanks,” demands precision. As with beveling, maintaining sharp edges (both internal and external) between different surfaces is a key challenge.

Satin finishing enhances both the aesthetics and refinement of a watch, making it a fundamental technique in high-quality watchmaking.