Citizen J810 User manual

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English

To determine the movement number

Your watch features a case number engraved on

the case back (refer to figure to the right).

On the case back, a number composed of four +

six alphanumeric characters (or more) is engraved.

In the example on the right, “1234” 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, be sure to store this manual in a safe place should it be

needed for future reference.

✳The case has different features depending on the model.

Details of model specific features may not be outlined in this manual. See

“ http://www.citizenwatch.jp/support/default.htm ”.

e engraving position may dier

depending on watch model.

1234-567890

English

■ Important instructions are categorized and depicted in this manual as follows: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:

Highly likely to cause death or serious injury

May cause serious injury or death

May or will cause minor or moderate injury or damage

Warning (caution) symbol followed by instructions that should be

followed and/or precautions that should be observed.

Warning (caution) symbol followed by prohibited use and/or

operation advisory.

Safety Precautions Safety Precautions

DANGER

WARNING

CAUTION

English

Features ………………………………………………………………… 7

Guide to Charging Time ……………………………………………… 8

Notes Before Use …………………………………………………… 10

Component identication ………………………………………… 13

Setting the Time …………………………………………………… 14

Setting the Calendar (For models with Date/Day indication)………… 16

Eco-Drive (solar powered) Watch Handling Precautions………… 18

Water resistance …………………………………………………… 22

Precautions and usage limitations ………………………………… 25

Maintenance ………………………………………………………… 30

Information ………………………………………………………… 31

Specications ……………………………………………………… 32

Table of contents

◆Eco-Drive (solar powered) watch

The watch operates by converting sunlight and other light into electrical energy. Once the

rechargeable cell is fully charged, the watch will function for approximately 8 months.

◆Insufficient charge warning

If the power becomes very low, the second hand advances

at 2-second intervals, indicating that charging is necessary.

When the second hand starts to advance at 2-second

intervals, expose the watch to light until it is fully charged.

◆Quick start function

When the stopped watch is exposed to light, it starts operating again.

Features

If the watch is not exposed to light within approximately 5 days aer the insucient

charge warning starts, the watch will stop.

Aer quick start, expose the watch to light until it is fully charged. Set the correct time

before using the watch.

English

Guide to Charging Time

Below are the approximate times needed for charging when exposing the watch

dial to light continuously. Please use this table as a reference only.

＊To charge the rechargeable cell fully, it is recommended to expose the dial to direct

sunlight. A uorescent lamp or interior lighting does not have sucient illumination to

charge the rechargeable cell fully.

is watch will run for approximately 8 months from a full charge without further exposure

to light.

Guide to Charging Time

Illuminance

(Lx) Environment

Charging time (approximate)

Charging

time to work

for one day

Charging time to start

working normally

(second hand moves in

1-second steps) when the

rechargeable cell is empty

Charging time to

the fully charged

state when the

rechargeable cell

is empty

10000 to

100000

Outdoors

(sunny sky,

cloudy sky)

7 to 25

minutes 4 to 15 hours 30 to 120 hours

3000 20 cm under a

uorescent lamp

(30 W) 50 minutes 30 hours 240 hours

500 Interior lighting 4 hours 200 hours —

English

Notes Before Use

• When the watch is regularly covered with long sleeves, it may not be charged

suciently. Try to keep the watch exposed to light sucient for charging.

• Do not charge the watch at a high temperature (about 60ºC/140˚F or higher).

◆Notes before use - Protective stickers

Prior to the watch being shipped from the manufacturing plant, its glass, case,

metal band, and metal parts of the clasp are covered with stickers to protect

them from getting fingerprints or scratches during transit from the plant to the

store. If the watch is worn without first removing these stickers, 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.

For this reason, please be sure to peel off the stickers before wearing the watch.

◆Notes on 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. 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, perform the following:

• Expose the watch with the dial facing towards direct

sunlight for five to six hours at least once a month.

• Do not store the watch in a dark place with no light

for a prolonged period of time.

English

Notes Before Use Component identification

◆About the crown

Some models use screw down system for the crown.

Accidental operations can be prevented when the watch is not being operated

by locking the crown. To operate the watch, release the lock.

• If your watch does not have a screw down crown, operations can be

performed without locking or unlocking the crown.

Before operation After operation

When the screw lock

is released, the crown

extends to the normal

position.

Unlock the crown

Rotate the crown to the

left (counterclockwise).

Lock the crown

Press the crown and

rotate it to the right

(clockwise) to tighten

the screw lock.

Minute hand

Crown

Date/Day indicator

(if equipped)

* The illustrations in this instruction manual may dier from the actual appearance of your watch.

Hour hand

Second hand

English

Setting the Time

Pull the crown out to

position 2.

Press the crown back into

its normal position.

Rotate the crown to

set the time.

Pull out the crown just as the

second hand is at the 0 second

position in order to accurately

align to the second.

Refer the time signal and push the

crown to set the time.

Be sure to secure if the watch has a

screw down crown.

Water may enter your watch.

For more accurate adjustment, rst

set the minute hand forward by ve

minutes and then return it to the

correct time.

1 32

English

Setting the Calendar (For models with Date/Day indication)

Pull the crown

out to position 1.

Press the crown

back into its

normal position.

Rotate the crown

counterclockwise to set the date.

Be sure to secure

if the watch has a

screw down crown.

Water may enter

your watch.

1 32

Rotate the crown clockwise to set the day.

For models with Day indication:

Avoid adjusting the calendar when the hands

indicate the following times.

The calendar may not be changed correctly.

Date indication model:

Approximately from 9 p.m. to 1:00 a.m.

Date/Day indication model:

Approximately from 9 p.m. to 4:30 a.m.

* Some models are designed to show the day indication

in languages other than Japanese and English.

English

Eco-Drive (solar powered) Watch Handling Precautions

• Your watch enjoys regular exposure to light. Wearing in situations that prevent light exposure such

as long shirt or coat sleeves will prevent your watch from receiving light sufficient for charging. In

these instances, supplemental charging may be needed.

• When you take your watch off, try and place it in a bright location. This will ensure your watch

receives light for charging and will continue to operate properly. Storing your watch in dark places

for extended periods of time may cause the stored energy to become depleted and your watch to

stop.

CAUTION Recharging Precautions

• Do not charge your watch at high temperatures (60°C/140°F) as

this may cause damage to sensitive components and the watch to

malfunction.

Examples:

• Charging the watch too close to a light source which generates

a large amount of heat such as an incandescent lamp or

halogen lamp.

* When charging your watch under an incandescent lamp,

be sure to leave 50 cm (19-11/16 inches) distance between

the lamp and the watch to avoid excessive heat. Never use a

halogen lamp for recharging as these generate excessive heat.

• Charging the watch in a location where the temperature may become extremely high such as on

the dashboard of a vehicle.

Eco-Drive (solar powered) Watch Handling Precautions

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