What is engine turning?

Engine turning, also known as guilloché or jeweling, is a decorative finish applied to metal surfaces, typically on the components of high-end watches, jewelry, and other luxury items. It involves creating intricate geometric patterns or designs on the surface of the metal through a mechanical process using a lathe or rose engine.

The process of engine turning involves using a series of rotating cutters or abrasive wheels to create the desired pattern on the metal surface. The patterns can range from simple straight or circular lines to more complex geometric designs such as spirals, waves, and sunbursts. Engine turning can be done on a variety of metals including gold, silver, brass, and steel.

Engine turning is a highly skilled and labor-intensive process that requires precision and attention to detail. The end result is a finely crafted and highly decorative surface that adds an extra element of luxury and sophistication to the finished product.

Engine turning has a long history and has been used as a decorative technique for centuries. Today, it is still widely used in the production of high-end watches, jewelry, and other luxury items where intricate and intricate detailing is valued.