====== PVD ====== **PVD** is the abbreviation for "physical vapor deposition". This is a method by which a wide variety of materials can be vaporized steel, aluminum, [[gold]], [[silver]], [[platinum]], tin, nickel, chromium, copper and oxides. More precisely ion particles from the source material of the watch are exchanged through ones with "different color". PVD-coated materials achieve excellent coating properties * High hardness, about 2 to 4 times the hardness of hardened steel * Smooth surface * The surface structure is maintained * Good adhesion * High density and homogeneity {{tag>Abbreviations Terms}}