Citizen BN7 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 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.