Watchmaker Vulcain has introduced a limited edition version of the Nautical, which works for scuba divers under water.
The Nautical first came out in 1961 and was used to warn divers when it was time to return to the surface. The 2013 version is a tribute to the watch.
This durable, charcoal grey layer with a low friction coefficient consists of an atomic lattice composed of the two forms of carbon: diamond and graphite. Diamondblack DLC (Diamond-Like Carbon) is applied using a coating process that faithfully mirrors the original surface finishes.
Diamondblack DLC consists solely of molecules of carbon and hydrogen arranged in a structure similar to that of diamond, producing a layer with excellent chemical stability and high corrosion resistance. Its proven biocompatibility enables prolonged contact with the skin without causing irritation.
It has a very high level of hardness, around 5,000 Vickers, compared to stainless steel, approximately 200 Vickers. This high-tech coating is used in the aerospace industry and in any application in which wear resistance and a low friction coefficient are essential.