Citizen BN7 Manual de usuario
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 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. Understand
the meaning of the following symbols and read pages from 28 to 39.
■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:
(Following symbols are examples of Pictograms.)
Warning (caution) symbol followed by prohibited matters.
Warning (caution) symbol followed by instructions that should
be followed or precautions that should be observed.
3
Features
Water resistant construction capable of withstanding a depth of 1,000 m (water pressure
equivalent to 100 atm)
• This watch features enhanced water resistance that enables it to withstand saturation
diving using helium gas.
Equipped with a helium escape valve for discharging helium gas
• In saturation diving, when decompressing to surface pressure in a diver decompression
chamber, the helium escape valve in the watch automatically discharges the helium gas
that has seeped into the watch to improve safety.
Rotating bezel with reverse rotation prevention mechanism to prevent incorrect operation
• The rotating bezel, which is important for checking diving time, employs a reverse
rotation prevention mechanism that prevents the rotating bezel from being rotated
inadvertently.
Request to customers
All parts of this watch, except for the band, are to be repaired only at CITIZEN.
This is because special technologies and equipment are required to perform repairs,
inspections and adjustments. Please make requests for repairs to an authorized service
center when having your watch repaired.
4
CONTENTS
Before using this watch ....................................................................6
Band adjustment............................................................................................................. 7
Protective stickers............................................................................................................ 7
How to use a specially designed crown............................................................................ 8
Component identification.................................................................9
Helium escape valve.....................................................................................................10
Charging your watch...................................................................... 11
When the watch reaches a low charge state (insufficient charge warning function) ....12
Charging time by environment.....................................................................................13
Checking the current power reserve................................................ 14
Before diving ................................................................................ 16
Cautions while diving .................................................................... 17
5
Maintenance after diving .............................................................. 18
Setting the time............................................................................ 20
Adjusting the calendar .................................................................. 21
Using the rotating bezel ................................................................ 22
Adjusting the length using the extension band ............................... 26
Troubleshooting............................................................................ 27
Eco-Drive watch handling precautions ............................................ 28
Water resistance ........................................................................... 30
Precautionary items and usage limitations..................................... 32
Specifications................................................................................ 40
CONTENTS
6
Before using this watch
After unpacking, the following must be done before using the watch:
Check the power reserve indication. (page 14)
Charge immediately if the power reserve level is “0” or “1”.
This watch has a rechargeable cell which is charged by
exposing the dial to light.
Expose the dial to direct sunlight regularly to charge the
watch.
For details of charging, see pages 11 to 15.
7
Band adjustment
Do not adjust the length of the band (metal or rubber) yourself. If you fail to
perform the work properly, the watch may fall off, or an injury may occur during
adjustment.
For band adjustment, consult the shop where you purchased the watch or an
authorized service center. Other shops may not be able to handle the watch, or may
charge a fee.
Protective stickers
Be sure to remove any stickers covering the metal parts (back cover, band, clasp)
or glass of the watch before use. Otherwise, perspiration or moisture may enter the
gaps between the protective stickers and the parts, which may result in a skin rash
and/or corrosion of the metal parts.
Before using this watch
8
How to use a specially designed crown
This watch is equipped with a specially designed crown to prevent accidental operation.
Screw down crown
Unlock the crown prior to operate your watch.
Unlock Lock
Screw
down
crown
Rotate the crown
counterclockwise until it
releases from the case.
Push the crown in and
rotate it clockwise until the
orange warning color is no
longer visible.
• Depending on the model, the warning color may differ or there may be no warning
color.
Note
• A screw down locking crown is employed to enhance the water resistance of the
watch. When operating the crown, first rotate it counterclockwise to disengage the
screw lock. Once you have finished operating the crown, always make sure to return
the crown to the normal position and then rotate it clockwise while pushing it in so
that the screw lock is securely engaged.
Before using this watch
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