Citizen J250 User manual

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.

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.

Engraving position example

The engraving position may

differ depending on watch

model.

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 4, 5, and

52 to 65) 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:

(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.

Safety precautions

Safety precautions Safety precautions

About water depth measurement

This watch is not designed to function as a specialized water-depth measuring

instrument certified by authorities. It is intended for use as an auxiliary reference

to your primary dive instrument. Be sure to use a specialized device designed for

diving as your primary dive instrument and depth reference.

Be sure you are properly trained and certified for diving.

Safety precautions Safety precautions

DANGER

The water-depth measurement function of this watch is not

certified as a measuring instrument by authorities.

Be sure to use a specialized instrument along with this watch

when diving. Do not rely solely on this watch’s function.

WARNING

Do not use the water-depth measurement function of this

watch in the following cases:

• When judgments involving risks are required by the

situation or for the actions.

• When the situation requires special treatments.

• When the power reserve is insufficient. (→ page 18)

CAUTION

Measurement results may be inaccurate in the following cases:

• When water depth changes rapidly or suddenly.

• When any foreign matter, dirt or debris is on or around the

water pressure sensor.

Features

Eco-Drive

Never needs a new battery.

This watch is fueled by

light.

Automatic water depth

measurement

The water sensor detects

water contact and starts

water depth measurement

automatically.

Rapid ascent warning

alarm

The water pressure sensor

on the watch detects rapid

ascent and alerts the user

with an alarm tone.

Maximum water depth

indication

You can view the

maximum water depth

for the last dive even after

finishing measurement.

• “Eco-Drive” is an original technology of Citizen.

CONTENTS

About water depth

measurement ...............................

Before using this watch..........

Band adjustment ...........................

Protective stickers .........................

How to use the screw crown/

button ............................................

Component identification ...

Charging your watch ...........

Checking the current power

reserve..............................

Water depth

measurement....................

Before measurement ...................

Rapid ascent warning alarm......

Reviewing the maximum water

depth record......................

About the “OVER”

indication..........................

Setting the time .................

Adjusting the calendar........

Continued on the next page

CONTENTS

Using the rotating bezel......

Checking and correcting the

reference position .............

Troubleshooting .................

Eco-Drive watch handling

precautions .......................

Water resistance .................

Precautionary items and

usage limitations...............

Specifications .....................

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