LUMINOVA
LumiNova is a registered trademark designating a non-radioactive photoluminescent material, made up of pigments that store Light and then release it in the dark. Invented and patented in 1994, it marked a break with older radioactive luminescent materials (radium, then tritium), which were abandoned for safety reasons. It was superseded as early as 1998 by Super-LumiNova, which performs better. Applied to the hands, the Index (hour marker) and certain dials, it allows the time to be read in dim light: after exposure to light, it glows for several hours, with decreasing intensity. Its emission color (often green or blue) and duration depend on the formulation and the thickness applied. Safe and durable — it does not degrade with Time, unlike radioactive materials —, LumiNova is today the reference luminescent solution, found on diving watches as well as on many everyday timepieces.
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