Citizen H240 User manual

To determine the movement number

Your watch features a case number engraved on the

case back (refer to figure to the right).

The first four characters of the case number

represent the movement caliber number of the

watch.

In the example on the right, “1234” is the

movement number.

Engraving position example

The engraving position may differ

depending on watch model.

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.

Safety precautions

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:

DANGER Highly likely to cause death or serious injury

WARNING May cause serious injury or death

CAUTION May or will cause minor or moderate injury or damage

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

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.

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.

Before using the watch

The following must be done before using the watch:

●Checking the power reserve Page 16

Check the charge level of the watch.

●Setting the World Time Page 18

Select the city or time difference for which you want to indicate the time and date.

●Checking the time signal reception Page 17

Check the result of the time signal reception.

This watch has a rechargeable cell which is charged

by exposing the dial to light such as direct sunlight

or fluorescent lamps.

Expose the dial to light regularly to charge the watch.

For details of charging, see pages 10 to 15.

Before using the watch................ 4

Component identification............ 8

Recharging your watch..............10

Checking the power reserve.......16

Checking the time signal

reception ...............................17

Setting the World Time..............18

Notes on the time signal

reception ...............................26

Receiving the time signal manually

(On demand reception)...........34

Switching Summer Time and

standard time ........................36

Adjusting the time/calendar

manually................................42

Checking and correcting the current

reference position ..................46

Table of contents

Troubleshooting........................50

Resetting the watch

—All Reset ............................54

Eco-Drive (solar powered) Watch

Handling Precautions .............56

Water resistance .......................60

Precautions and usage

limitations .............................63

Maintenance.............................68

Information ..............................69

Specifications............................70

Component identification

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

watch.

Hour hand

Second hand

Crown

Crown position

Minute hand

Lower right button ( )

Date indication

City or time difference

indication

Signal reception indication

• OK/NO: Reception result

• RX: Reception in progress

Summer Time indication

(ON/OFF)

Table of contents

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