Citizen 2502 Instruction Manual page 17

Chemicals and Gases
Avoid wearing the watch in the presence of strong chemicals or gases. If the
watch comes in contact with such solvents as thinner and benzine or products
containing materials such as gasoline, polish, detergent or adhesive, its
components may discolor, dissolve, or crack. Be especially careful to avoid
chemicals. The watchcase or band may discolor if they come in contact with
mercury from a broken thermometer or other equipment.
When Luminous Paint is used for your watch
The paint on the dial and hands helps you with reading the time in a dark place.
The luminous paint stores light (daylight or artificial light) and glows in a dark place.
It is free from any radioactive substance or any other material harmful to a
human body or environment.
• The light emission gradually becomes weaker as time passes.
• The duration of the light ("glow") will vary depending on the brightness, types
of and distance from a light source, exposure time, and the amount of the paint.
• The paint may not glow and/or may dissipate quickly if exposure to light was
not sufficient.
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