A soldier might require a glow-in-the-dark watch dial for legibility while for others it might simply elicit a childlike sense of wonder. The most common way for watchmakers to achieve this effect without the use of batteries or electricity is with luminescent paint, colloquially called lume — but it’s not the only option. Traser P68 Pathfinder Automatic

Ball Engineer III Marvelight Chronometer

Marathon General Purpose Mechanical
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