watchatlasWhy does your watch glow in the dark, and why is it dimmer by morning?
Most modern lume, like Super-LumiNova, isn't radioactive. It charges with light and releases it slowly, so it's brightest right after sunlight and fades through the night.
Vintage is a different story. Early dials used radium, and later ones used tritium, which glowed on its own. If you own an old piece, leave the dial work to a professional.
Quick trick: give your watch a minute under a bright light before bed.
Footage is AI-generated and illustrative.
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