Citizen H24 Abbreviated Instruction

H24*
Abbreviated instruction
• This watch is light-powered. Be sure your watch is fully charged before use.
• For complete instructions for setting, use, charging time and specifications, refer to the full instruction manual:

Component identification

Hour hand
Second hand
Summer time
indication (ON/OFF)
• Actual appearance may differ from the
illustration above.
• The crown has two positions when pulling it out.

Checking the current power reserve

1. Push the crown in to position 0 .
2. Press and release the lower right button Ⓐ .
The movement of the second hand indicates power reserve amount.
Pointing "OK" or "NO"
Pointing "OK" or "NO" after
moving counterclockwise
• It has no relationship with power reserve that which the second
hand points, "OK" or "NO".
3. Press and release the lower right button Ⓐ to finish the procedure.
The indication returns to current time.
• It returns to current time indication automatically in about 10
seconds without pressing the button.

Checking the signal reception result

This watch automatically receives the time signal every night.
1. Push the crown in to position 0 .
2. Press and release the lower right button Ⓐ .
The second hand moves to indicate the result of the last reception.
Indication Reception result
OK
The reception succeeded.
NO The reception failed.
• Try signal reception following the steps in "Receiving the signal
manually (on-demand reception)" if the last reception failed.
• Even when this watch receives the signal successfully, the
accuracy of the displayed time will be dependent on the reception
environment and internal processing.
3. Press and release the lower right button Ⓐ to finish
the procedure.
The indication returns to current time.
• It returns to current time indication automatically in about 10
seconds without pressing the button.
Reception result
indication (OK/NO)
Reception-in-progress
indication (RX)
Minute hand
Date indication
Crown
City or time zone
Button Ⓐ
Crown's position
0 1 2
Power reserve is sufficient.
Charge immediately.
Charge sufficiently.

Checking the world time

• The city or time zone setting controls the target station from which
the watch tries to receive signals. Check the city or time zone setting.
• It depends on models which must be set on the watch, the city
or time zone. Set the world time referring to "Setting the city" or
"Setting the time zone".
Watch appearance for setting the city
City indication

Setting the city

1. Pull the crown out to position 1 .
The second hand moves to point the city currently set.
2. Rotate the crown to select a city.
• Choose a city from "Table of the city names" below.
• Each time you change the city, the time and date of the selected
city is shown.
3. Push the crown in to position 0 to finish the procedure.
The indication returns to current time.

Table of the city names

Indication City name and second hand' s position
LON *London
PAR
*Paris
ATH
*Athens
RUH
Riyadh
DXB Dubai
KHI Karachi
DAC Dhaka
BKK
Bangkok
BJS
Beijing
TYO
Tokyo
SYD Sydney
NOU Noumea
AKL Auckland
MDY
Midway
HNL
Honolulu
ANC **Anchorage
LAX **Los Angeles
DEN **Denver
CHI
**Chicago
NYC
**New York
SCL
Santiago
RIO Rio de Janeiro
FEN Fernando de Noronha
PDL *Azores
• For cities with * or **, indication of summer time and that of standard time are
linked together.
• The time zone in the table is based on UTC (Coordinated Universal Time).
• When using the watch in an area not listed in the table, choose and set the city
of the same time zone.
• Countries or regions may change time zones for various reasons.
• Cities with ♦ mark are out of receivable range and signals cannot be received.
(The watch tries to receive signals from the target signal station though.)
• It may be difficult to receive signals in certain environment where it is hard for
signals to reach.
H24* instruction manual
Watch appearance for setting the time zone
Time zone indication
Time zone Signal station
0 sec. 0
Germany
3 sec. +1
5 sec. +2
Germany ♦
8 sec. +3
10 sec. +4
13 sec. +5
China ♦
15 sec. +6
17 sec. +7
China
20 sec. +8
Japan
22 sec. +9
25 sec. +10
Japan ♦
27 sec.
+11
30 sec. +12
33 sec. -11
USA ♦
35 sec. -10
38 sec. -9
40 sec. -8
USA
43 sec. -7
45 sec. -6
47 sec. -5
USA ♦
50 sec. -4
52 sec. -3
55 sec. -2
Germany ♦
57 sec. -1
Continued on the next page