Operation Guide
Operation Guide 5612 5613
E-39
Illumination
An LED (light-emitting diode) illuminates the face of the 
watch for easy reading in the dark. The watch’s auto light 
switch turns on illumination automatically when you angle 
the watch towards your face.
• The auto light switch must be turned on (indicated by 
the auto light switch on indicator) for it to operate.
• See “Illumination Precautions” (page E-48) for other 
important information about using illumination.
To illuminate the face manually
In any mode, press 
B
 to turn on illumination.
• The above operation turns on illumination regardless of 
the current auto light switch setting.
Auto light switch on 
indicator
E-38
 To turn the Hourly Time Signal on and off
1. In the Alarm Mode, use 
D
 to select the Hourly Time 
Signal (
SIG
) (page E-35).
2. Press 
A
 to toggle it on (
on
) and off (
OFF
).
• The Hourly Time Signal on indicator is shown on the 
display in all modes while this function is turned on.
Hourly time signal 
on indicator
On/Off status
E-37
 To turn an alarm on and off
1. In the Alarm Mode, use 
D
 to select an alarm.
2. Press 
A
 to toggle it on (
on
) and off (
OFF
).
• Turning on a alarm (
AL1
, 
AL2
, 
AL3
, 
AL4
 or 
SNZ
) 
displays the alarm on indicator on its Alarm Mode 
screen.
• In all modes, the alarm on indicator is shown when 
any alarm is turned on.
• The alarm on indicator flashes while the alarm is 
sounding.
• The snooze alarm indicator flashes while the snooze 
alarm is sounding and during the 5-minute intervals 
between alarms.
Alarm on indicator
Snooze alarm indicator
On/Off status
E-36
3. Press 
C
 to move the flashing between the hour and minute settings.
4. While a setting is flashing, use 
D
 (+) and 
B
 (–) to change it.
5. Press 
A
 to exit the setting mode.
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the 
watch is in. In the case of the snooze alarm, the alarm operation is performed a total 
of seven times, every five minutes, or until you turn the alarm off (page E-37).
• Alarm and Hourly Time Signal operations are performed in accordance with the 
current time in your Home City, as kept in the Timekeeping Mode.
• To stop the alarm tone after it starts to sound, press any button.
• Performing any one of the following operations during a 5-minute interval between 
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen (page E-9)
Displaying the 
SNZ
 setting screen (page E-35)
E-35
 To set an alarm time
1. In the Alarm Mode, use 
D
 to scroll through the alarm 
screens until the one whose time you want to set is 
displayed.
AL1
SIG
AL2 SNZAL3 AL4
• To set a daily alarm, display alarm screen 
AL1
, 
AL2
, 
AL3
 or 
AL4
. To set the snooze alarm, display the 
SNZ
 screen.
• 
SIG
 is the Hourly Time Signal setting (page E-38).
• The snooze alarm repeats every five minutes.
2. After you select an alarm, hold down 
A
 for at least three seconds until the hour 
setting of the alarm time starts to flash. This is the setting mode.
• This operation turns on the alarm automatically.
On/Off status
E-34
 Alarms
When an alarm is turned on, the alarm tone will sound 
when its alarm time is reached. One of the alarms is a 
snooze alarm, while the other four are daily alarms.
You also can turn on an Hourly Time Signal that causes 
the watch to beep twice every hour on the hour.
• There are five alarm screens numbered 
AL1
, 
AL2
, 
AL3
and 
AL4
 for the daily alarm, and a snooze alarm screen 
indicated by 
SNZ
. The Hourly Time Signal screen is 
indicated by 
SIG
.
• All of the operations in this section are performed in the 
Alarm Mode, which you enter by pressing 
C
 (page E-7).
Alarm time
(Hour : Minutes)
Alarm number
E-33
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time City. This 
changes your Home City to your World Time City, and your World Time City to your 
Home City. This capability can come in handy when you frequently travel between two 
cities in different time zones.
To swap your Home City and World Time City
1. In the World Time Mode, use 
D
 to select the World Time City you want. 
2. Hold down 
A
 and 
B
 until the watch beeps.
• This will make the World Time City you selected in step 1 your Home City, and 
cause the hour and minute hands to move to the current time in that city. At the 
same time, it will change the Home City you had selected prior to step 2 your 
World Time City, and cause the content of upper digital display to change 
accordingly.
• After swapping the Home City and World Time City, the watch stays in the World 
Time Mode with the city that was selected as the Home City prior to step 2 now 
displayed as the World Time City.
E-32
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, press 
D
 to display the city 
code (time zone) whose Standard Time/Daylight Saving 
Time setting you want to change.
2. Hold down 
A
 for at least three seconds to toggle 
between Daylight Saving Time (
DST
 indicator 
displayed) and Standard Time (
DST
 indicator not 
displayed).
• A 
DST
 indicator will be displayed in the upper digital 
display if Daylight Saving Time is turned on.
• You can turn on DST individually for each city code, 
except UTC.
• Turning on DST for the city code that is currently 
selected as your Home City will turn on DST for 
normal timekeeping.
DST indicator
E-31
To view the current time in another time zone
In the World Time Mode, use 
D
 to scroll through available city codes (time zones).
• The upper digital display will show the time in the currently selected World Time 
City.
• A PM indicator will be displayed in the upper digital display between the hours of 
noon and midnight.
• When the city code (time zone) you want is selected, you can press 
A
 to display 
the date. After about one second, the watch will resume regular timekeeping for the 
currently selected city.
One second
Hour : Minutes
Seconds
PM indicator
Date
A
E-30
 World Time
World Time digitally displays the current time in one of 
48 cities (29 time zones) around the world. A simple 
operation swaps your Home City with the currently 
selected World Time City.
• The times kept in the World Time Mode are 
synchronized with the time being kept in the 
Timekeeping Mode. If you feel that there is an error in 
any World Time Mode time, check to make sure you 
have the correct city selected as your Home City. Also 
check to make sure that the current time as shown in 
the Timekeeping Mode is correct.
• Times in the World Time Mode are based on UTC offsets. See the “City Code 
Table” at the back of this manual for information about the UTC offsets that are 
supported.
• All of the operations in this section are performed in the World Time Mode, which 
you enter by pressing 
C
 (page E-7).
Currently selected 
World Time City
World Time








