Citizen NB0 SERIES User manual

INSTRUCTION MANUAL

ENGLISH
DEUTSCH
FRANÇAIS
ESPÑOL
ITALIANO
PORTUGÊS
中文（繁体字）
中文（簡体字）
日本語

1
English
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.
Visit the Citizen website (http://www.citizenwatch-global.com/) to view
visual guides for operation of your watch. Some models may be equipped
with external features (calculation scale, tachymeter, etc.). Visual guides for
operation of such external features can also be found on the website.
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.

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English
Table of contents
Setting the time and date.................................................................. 4
Mainspring ........................................................................................... 6
Mechanical watches............................................................................ 8
Water resistance ................................................................................ 10
Precautions and usage limitations ................................................ 13
Maintenance ...................................................................................... 21
Specifications..................................................................................... 22
Safety precautions
This manual may contain certain safety advisories. Your watch should be used in
accordance with these advisories at all times to ensure optimal enjoyment of your watch
and to prevent injury to yourself, other persons and/or damage to property.
■ Safety advisories are categorized and depicted in this manual as follows:
WARNING May cause serious injury or death
CAUTION May 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 and/or precautions that should be observed.

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English
While the hands indicate between 8:00 PM and 2:00 AM:
Do not perform steps 1and 2; otherwise, the date may not change properly.
If you want to perform the steps, first turn the crown in position 2to move the hands
so they are not indicating between 8:00 PM and 2:00 AM.
1. Pull out the crown to position 1.
2. Turn the crown to the right (clockwise) to set the date to one day before the date you
want to set.
3. Pull out the crown to position 2.
4. Turn the crown to the left (counterclockwise) to set the date.
• The watch indicates morning when the date changes.
5. Turn the crown to set the time.
• To set an afternoon or evening hour, turn the hands to 12:00 first, then set the time.
6. Push in the crown to position 0.
• The date is based on a 31-day calendar. Adjust the date indication on the first days of
March, May, July, October and December.
Date
Crown
Setting the time and date
• When the screw down crown is equipped on your model, loosen the screw before
operation. After operation, return the crown to the normal position and tighten it.
• When the watch stops, turn the crown to the right (clockwise) in position 0to wind
the mainspring manually.
• The illustrations in this instruction manual may differ from the actual watch.
Hour hand
Minute hand
Second hand