Glossary
Luminescent material applied to hands, hour markers, and sometimes the bezel so the dial can be read in low light or darkness.
The lume material a watch uses depends on its production era: radium, then tritium, then Super-LumiNova follow a roughly known timeline, so the lume material and glow color should be consistent with the watch's claimed age. A vintage watch with implausibly bright modern lume, or a lume plot that doesn't match its reference, both warrant a closer look.
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