Glossary · Materials
DLC
Definition
DLC (Diamond-Like Carbon) is an ultra-resistant coating I apply to metal components to provide extreme hardness and a distinctive matte black appearance. In my experience, this carbon-based finish offers superior scratch resistance compared to traditional steel, making it ideal for sports and tactical watches. I consider it one of the most significant innovations in modern watch finishing.
Frequently asked questions
What is the difference between DLC and black PVD on straps?
DLC offers significantly greater hardness than PVD, reaching values of 2000-5000 HV on the Vickers scale compared to 500-1500 for PVD. In addition, DLC produces a deeper, matte black, while PVD tends to have metallic reflections. At Milano Straps, we choose DLC when wear resistance is the priority.
Can the DLC coating wear out over time?
DLC is extremely durable, but very deep scratches or violent impacts can cause localised micro-damage. However, its amorphous carbon structure makes it one of the most resistant coatings available. Our DLC components keep their original appearance for years, even with intensive use.
Which materials does Milano Straps apply DLC to on its straps?
We apply the DLC coating mainly to the 316L steel of the buckles, keepers and metal components of our straps. The process requires meticulous surface preparation to ensure optimal adhesion. The result is a hybrid surface that combines the strength of steel with the properties of diamond-like carbon.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
The atelier's website: casatimilano.com