How it Works
Citizen
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H24 series
Instruction Manual
75 pgs4.33 Mb0
Table of contents
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Citizen CTZ-B8155, EC1 series, H24 series Instruction Manual

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. Visit the Citizen website (http://www.citizenwatch-global.com/) to view visual guides
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.
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 56 to 69.
■ Safety advisories are categorized and depicted in this manual as follows:
DANGER
WARNING
CAUTION
■ Important instructions are categorized and depicted in this manual as follows:
Highly likely to cause death or serious injury
Can cause serious injury or death
Can or will cause minor or moderate injury or damage
Warning (caution) symbol followed by instructions that should be followed or precautions that should be observed.
Warning (caution) symbol followed by prohibited matters.
2
Before using the watch
The following must be done before using the watch:
●
Checking the power reserve Page
Check the charge level of the watch.
●
Setting the World Time Page
Select the city or time difference for which you want to indicate the time and date.
●
Checking the time signal reception Page
Check the result of the time signal reception.
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 9 to 15.
16
18
17
Before using the watch Before using the 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 an authorized service center.
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.
How to use a specially designed crown/button
Some models are equipped with a specially designed crown and/or push button to prevent accidental operation.
4 5
Screw down crown/button
Unlock the crown/button prior to operate your watch.
Unlock Lock
Screw down crown
Screw down push button
Rotate the crown counterclockwise until it releases from the case.
Rotate the locking screw counterclockwise, and loosen until it stops.
Recessed buttons
Press the button with a non-marring narrow-tipped object such as a wooden toothpick.
• Metal objects may cause marring or scratching of the button.
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 fi rml y.
Table of contents
Before using the watch ...............
Component identification ...........
Recharging your watch................
Checking the power reserve .......
Checking the time signal
reception ...............................
Setting the World Time .............
6
3
Notes on the time signal
reception ...............................
8
Receiving the time signal manually
9
(On demand reception) ...........
16
Switching Summer Time and
standard time ........................
17
Adjusting the time/calendar
18
manually ................................
26
34
36
42
Checking and correcting the current
reference position ..................
46
Precautions and usage
limitations .............................
63
Troubleshooting .......................
Resetting the watch
—All Reset ............................
Eco-Drive Watch Handling
Precautions ............................
Water resistance .......................
50
Specifications ............................
54
56
60
70

Component identification

Signal reception indication
• OK/NO: Reception result
• RX: Reception in progress
Minute hand
Crown
Hour hand
Summer Time indication (ON/OFF)
Second hand
Crown position
Date indication
Lower right button ( )
City or time difference indication
The illustrations in this instruction manual may differ from the actual appearance of your watch.
8
Recharging 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.
Recharging your watch Recharging your watch
The charge of the watch is low if the second hand rotates counterclockwise when you
check the power reserve (page 16) or the time signal reception (page 17). You can operate the watch as usual. However, the watch needs to be charged.
After rotating counterclockwise ...
Indicates the reception result
10 11
In addition, 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.
• Avoid leaving the watch in a dark place for long periods of time.
Caution
• When the watch is regularly covered with long sleeves, it may not be charged sufficiently. Try to keep the watch exposed to light sufficient for charging.
• Do not charge the watch at a high temperature (about 60˚C (140˚F) or higher).
Recharging your watch Recharging your watch
Charging time by environment
Below are the approximate times required for charging when exposing the watch dial to light continuously. Please use this table as a reference only.
Environment
Outdoors (sunny) 100,000
Outdoors (cloudy) 10,000
20 cm (7-7/8 inches) away from a fluorescent lamp
(30W)
Interior lighting 500
Illuminance
(lx)
3,000
To work for
one day
4 minutes 1.5 hours 25 hours
14 minutes 4 hour 60 hours
40 minutes 12 hours 150 hours
4 hours 80 hours
Charging time (approx.)
To start working
normally when the cell is
discharged
To become fully charged
when the cell is discharged
12 13
To charge the rechargeable cell fully, it is recommended to expose the dial to
direct sunlight. A fluorescent lamp or interior lighting does not have sufficient
illumination to charge the rechargeable cell fully.
• When fully charged, the overcharging prevention function works automatically.
The accuracy or parts of the watch will not be affected by extra charging.
Run time
Fully charged to fully discharged:
Approximately six months (at normal operation) Approximately three years (with power save feature)
Recharging your watch Recharging 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. Charge the watch by exposing the dial to light.
• When the watch is sufficiently charged, the second hand will move normally.
• If you have not charged the watch for several days since the insufficient charge warning movement began, the watch will run out of power and stop.
Caution
Even when the second hand moves once every two seconds, the current time and date are indicated. However, operations and signal reception are not possible.
14 15
Power save feature
When the watch is not exposed to light for a long period of time, such as when you store it in the dark, the minute hand and second hand automatically stop to save power. However, the watch still keeps the time.
• When the crown is in position or , the power save feature will not activate.
• The power save feature can not be activated manually.
To cancel the power save feature
When the watch is exposed to light sufficient for charging, the power save feature is automatically canceled and normal time indication will resume. After the power save feature is canceled, you should receive the time signal manually. See pages 34 and 35.
• The power save feature cannot be canceled by operating the crown or buttons.

Checking the power reserve

1. Ensure that the crown is in position .
2. Press the lower right button briefly.
The second hand moves to indicate the power reserve.
The second hand indicates “OK” or “NO”
The second hand rotates counterclockwise, then indicates “OK” or “NO”
• “OK” and “NO” indicate the reception result of the time signal and no relationship to the power reserve.
3. Press the lower right button briefly to finish the procedure.
The current time is indicated.
• The current time will be indicated automatically after
10 seconds even without pressing the button.
16
The watch is sufficiently charged.
The charge of the watch is low. Charge the watch. See pages 9 to 15.
Checking the time signal reception
1. Ensure that the crown is in position .
2. Press the lower right button briefly.
The second hand indicates the reception result.
Reception has succeeded.
OK
Reception has failed.
NO
When reception has failed, see page 32.
3. Press the lower right button briefly to finish the procedure.
The current time is indicated.
• The current time will be indicated automatically after 10 seconds even without pressing the button.
When reception has succeeded

Setting the World Time

By setting the city or time difference from UTC, the local time and date is shown. Select the city or time difference to indicate the current time and date.
• Whether you select the city or time difference depends on the appearance of your watch.
Watch appearance for setting the city Watch appearance for setting the time difference
City indication
See pages 19 and 22 to 25. See pages 20 to 25.
Time difference indication
18 19
Setting the World Time
Setting the city
Select the city for which you want to indicate the time and date.
1. Pull the crown out to position .
The second hand moves and indicates the city currently selected.
2. Rotate the crown to select the city for which you want to indicate the time and date.
• For details of the selection of
cities, see pages 23 to 25.
• Each time you select a city, the
time and date of the city you have selected will be indicated.
3. Push the crown in to position
When “New York” (47 seconds position) is selected
to finish the procedure.
After setting the World Time, check the displayed time—Summer Time or standard time. (See pages 36 to 41.)
Setting the World Time Setting the World Time
Setting the time difference
1. Pull the crown out to position .
The second hand moves and indicates the time difference currently selected.
2. Rotate the crown to select the time difference.
• You can select
the time difference from UTC in the range of –11 hours to +12 hours, in 1hour increments.
– +
When setting to –5 hours (New York)
20 21
3. Push the crown in to position to finish the procedure.
• Be sure to set the time difference from UTC. To show the summer time, change the display after setting the time difference. (See pages 36 to 41.)
• See the tables on pages 23 to 25 for the time differences for typical cities.
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