Citizen Eco-Drive BN4021-02E User manual

INSTRUCTION MANUAL

ENGLISH
FRANÇAIS
ESPAÑOL
DEUTSCH
ITALIANO
PORTUGUÊS
中文（繁体字）
中文（簡体字）

1
Thank you for your purchase of this Citizen watch.
Before using the watch, read this instruction manual carefully to ensure correct use.
After reading the manual, store it in a safe place for future reference.
Be sure to visit the Citizen website at http://www.citizenwatch-global.com/ . Here
you will find a variety of information such as electronic setting guides, answers to
frequently asked questions, Eco-Drive recharging information and more.
To check the movement number
A case number—4 alphanumeric characters and
6 or more alphanumeric characters—is engraved
on the case back. (Figure on the right)
The first 4 characters of the case number
represent the movement number of the watch.
In the example on the right, “ ” is the
movement number.
Engraving position example
The engraving position may differ
depending on watch model.

2
Safety precautions — IMPORTANT
This manual contains instructions that should be strictly followed at all times
not only for optimal use, but to prevent any injuries to yourself, other persons or
property. We encourage you to read the entire booklet (especially, pages 3, 4, and
58 to 71) and understand the meaning of the following symbols:
■ Safety advisories are categorized and depicted in this manual as follows:
DANGER Highly likely to cause death or serious injury
WARNING Can cause serious injury or death
CAUTION Can or will cause minor or moderate injury or damage
■ Important instructions are categorized and depicted in this manual as follows:
Warning (caution) symbol followed by instructions that should be
followed or precautions that should be observed.
Warning (caution) symbol followed by prohibited matters.

Before using this watch
3
About altitude measurement
This watch does not function as a specialized altitude-measuring equipment
certified by any authority or regulating standards. Use the indicated altitude only
as a reference.
WARNING
Do not use the altitude measurement function of this watch in the
following cases:
• When actions or situation judgments involving risks are required.
• When rapid changes in altitude occur such as when skydiving or hang-
gliding.
• When wearing the watch under water such as in skin diving.
• When the situation requires special treatments.
CAUTION
Altitude may be measured improperly in the following cases:
• When air temperature changes sharply.
• When atmospheric pressure largely changes accompanying with changes
of weather conditions.
• When the function is used in places where atmospheric pressure is
conditioned constant (such as in an airplane).