Citizen J250 Setting Instructions

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.

1

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

 

 

2

Safety precautions

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

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.

4

Safety precautions

 

The water-depth measurement function of this watch is not

DANGER

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.

 

Do not use the water-depth measurement function of this

 

watch in the following cases:

WARNING

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)

 

Measurement results may be inaccurate in the following cases:

CAUTION

When water depth changes rapidly or suddenly.

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

 

water pressure sensor.

5

Features

Automatic water depth measurement

The water sensor detects water contact and starts water depth measurement automatically.

60

Maximum water depth indication

You can view the maximum water depth for the last dive even after finishing measurement.

6

Rapid ascent warning

Eco-Drive

alarm

Never needs a new battery.

The water pressure sensor

This watch is fueled by

on the watch detects rapid

light.

ascent and alerts the user

 

with an alarm tone.

 

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

 

CONTENTS

 

About water depth

 

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

4

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

9

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

10

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

10

How to use the screw crown/

 

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

11

Component identification....

12

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

14

Checking the current power

 

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

18

Water depth measurement.. 20

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

20

Rapid ascent warning alarm......

24

Reviewing the maximum water

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

30

About the “OVER”

 

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

32

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

34

Continued on the next page 7

CONTENTS

Adjusting the calendar.........

35

Eco-Drive watch

52

Using the rotating bezel

36

handling precautions.........

Water resistance

56

Checking and correcting

38

Precautionary items and

 

the reference position........

59

 

 

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

Troubleshooting

44

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

66

 

 

8

Before using this watch

After unpacking, the following must be done before using the watch:

Check the power reserve indication. (→ page 18)

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 14 to 19.

Continued on the next page 9

Before using this watch

Band adjustment

We recommend seeking the assistance of an experienced watch technician for sizing of your watch. If adjustment is not done correctly, the bracelet may unexpectedly become detached leading to loss of your watch or injury.

Consult your nearest authorized Citizen service center. Other shops may charge for, or may not provide, the service.

Protective stickers

Be sure to remove any protective stickers that may be on your watch (case back, band, clasp, etc.). 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.

10

Before using this watch

How to use the screw crown/button

Some models are equipped with a specially designed crown and/or push button to prevent accidental operation.

Screw down crown/button

Unlock the crown/button prior to operate your watch.

 

Unlock

Screw down

Rotate the crown

counterclockwise until

crown

it releases from the case.

 

Screw down

Rotate the locking screw

counterclockwise, and

push button

loosen until it stops.

 

Lock

Push the crown in to the case. With gentle pressure towards the case, rotate the crown clockwise to secure it to the case. Be sure to tighten firmly.

Rotate the locking screw clockwise, and tighten firmly.

11

Component identification

During daily use

Hour hand

Upper left button

Minute hand

Power reserve indication hand

Water pressure sensor

5

Lower left button Second hand

2

03

Date indication Crown

The illustrations in this instruction manual may differ from the actual appearance of your watch.

12 A solar cell is placed under the dial.

Citizen J250 Setting Instructions

Parts identification

During water depth measurement

Hour hand

 

Upper left button

 

Power reserve

5

indication hand

Water pressure

 

sensor

 

Maximum water depth hand

Minute hand

Rotating bezel

Water sensor

Lower left button

Second hand

 

2

Date indication

 

 

 

 

Crown

03

Water depth

hand

 

 

 

13

Charging your watch

This watch has a rechargeable cell which is charged by exposing the dial to light, such as direct sunlight or fluorescent lamps (refer to pages 16 and 17 for charging guidelines).

After taking off the watch, put it in a location where the dial is exposed to bright light, such as by a window.

For optimal performance, be sure to:

Expose it to direct sunlight for 5 or 6 hours at least once a month.

Avoid leaving it in dark places for long periods of time.

CAUTION

• Do not charge the watch at high temperature (about 60°C (140°F) or higher).

• If the watch is obscured from light by long sleeves frequently, supplemental charging may be needed to ensure continual operation.

14

Charging your watch

When the watch reaches a low charge state (insufficient charge warning function)

When the power reserve becomes low, the second hand

moves once every two seconds. This is the insufficient charge warning function. Be sure to fully charge your watch as outlined on pages 16 and 17.

When the watch is sufficiently charged, the second hand will

If you do not charge the watch for 4 days or longer after the 03

insufficient charge warning movement has begun, the watch will be depleted of all power and stop.move normally.

CAUTION

• When in the insufficient charge warning state, the current time and date are indicated. However, measurement functions of the watch will not be available for use.

Continued on the next page 15

Charging your watch

Charging time by environment

Below are the approximate charging times when exposing to light continuously. Please use this table as a reference only.

 

 

 

Charging time (approx.)

 

 

 

 

 

Environment

Illuminance (lx)

 

To start working

To become fully

To work for one day

normally when the

charged when the cell

 

 

 

cell is discharged

is discharged

Outdoors (sunny)

100 000

3 minutes

2 hours

35 hours

Outdoors

10 000

11 minutes

3.5 hours

80 hours

(cloudy)

 

 

 

 

20 cm (8 inches)

 

 

 

 

away from a

3 000

40 minutes

8 hours

280 hours

fluorescent lamp

 

 

 

 

(30W)

 

 

 

 

 

 

 

 

 

Interior lighting

500

4 hours

50 hours

16

Charging your watch

To charge your watch, it is recommended to expose the dial to direct sunlight.

Optimal charging is achieved by exposing the dial to direct sunlight outdoors for

a short time each day.

After charged fully, the watch runs without additional charging for about 11 months.

17

Checking the current power reserve

Power reserve level scale

 

 

READY indication

Power reserve indication

READY

 

hand

 

EPower reserve level scale

The power reserve indication hand points to “READY” as the water sensor detects water. (→ page 22)

The power reserve level

You cannot use measurement functions while the power reserve level is in “0”. However, you can see the current time. Frequent use of measurement functions makes power duration shorter.

18

Checking the current power reserve

The power reserve level is indicated in the four stages shown below.

Level

Power reserve level scale

Duration (approx.)

Meaning

3

2

1

0

READY

READY

READY

READY

E

E

E

E

340 - 300 days

300 - 200 days

200 - 4 days

4 days or shorter

Power reserve is

Power reserve is

Power reserve is

Power reserve is

sufficient.

OK.

getting low.

insufficient. The

 

 

 

insufficient charge

 

 

 

warning will start

 

 

 

soon.

OK for normal use

Charge immediately.

19

Water depth measurement

Before measurement

Be sure to note the following caution(s) and check the items on the next page before using the water depth measurement function of this watch.

CAUTION

• This watch 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.

20

Water depth measurement

Items to check before water depth measurement

Commercial specialized devices for diving are prepared. (→ page 4)

The band of the watch is not worn or damaged.

No foreign objects stick around the water pressure sensor or water sensor.

The crown and buttons are screwed down. (→ page 11)

The power reserve is in level “2” or higher. (→ page 18)

Understand the rapid ascent warning and corresponding alarm. (→ page 24)

The watch is not wet. (→ page 32)

The hand does not point to “OVER”. (→ page 32)

The time indication is correct. (→ page 34)

21

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