The 316L stainless steel, which Certina uses for cases, bracelets and clasps for instance, is extremely resistant, corrosion-resistant and hygienic. It contains only a very small proportion of nickel, which is not emitted when worn and therefore does not trigger any nickel allergies.

Aluminium is very neutral, hypoallergenic, corrosion-resistant and temperature-resistant. However, above all, it is extremely lightweight: Three times lighter than stainless steel and around one and a half times lighter than titanium. These are some of the qualities used by Certina for manufacturing extremely lightweight cases and clasps. The brand uses anodised aluminium only: Not only does this extremely durable protective layer enable the material to be additionally hardened, it allows it to be coloured in any colour you choose too.

SLN is the acronym for Super-LumiNova®, a phosphorescent luminescent material. The BG W9 type of SLN, used by Certina, emits the stored light in the form of a bluish glow in the dark. SLN poses no risk to health and is used to coat hands, indices and bezels. Its brightness decreases in the dark after some time, but it is automatically recharged when light strikes it.