THE CONCEPT

Stein Diamonds is dedicated to providing our customers with exclusive timepieces at competitive prices. Our new exclusive line of PVD / DLC timepieces continues this tradition, by taking Swiss timepieces from revered brands such as Rolex and Cartier and enhancing them by adding a highly advanced black military grade coating.

what is dlc?

The coating of the watch is a "Diamond Like Carbon", DLC, coating that is far superior to traditional coating methods such as anodization and powder coating. Both of these traditional methods typically used on home appliances and electronics, are thicker, have medium longevity and are prone to chipping. The combination of PVD / DLC coating is far superior in that it is only a few microns thick, has a high micro-hardness, a lower Coefficient of Friction and is tightly bonded to the metal substrate making it nearly impossible to remove once applied.

what is PVD?

Physical Vapor Deposition, or PVD, is a process that occurs in a vacuum chamber at working pressure (typically 10-2 to 10-4 Mbar) and involves bombardment of the substrate to be coated, in this case the Swiss timepiece case and band, with energetic positively charged ions resulting in a jet-black finish that will not chip, fade, corrode or tarnish.

These properties have made PVD coating prevalent in many industries such as:
Metal cutting lathes - increases the life of all sorts of parts from the lathe bed to the cutting tools themselves
F1 racing parts - transmission gears and engine parts are coated to help increase the reliability of high-performance 10,000+ RPM engines
Because PVD reduces the friction between metal parts less lubrication is necessary and temperatures are generally lower than without coatings.