MA0706-EA
Operation Guide 3120
About This Manual
• Depending on the model of your watch, display text
appears either as dark figures on a light background or
light figures on a dark background.
All sample displays in this manual are shown using dark
figures on a light background.
• Button operations are indicated using the letters shown
in the illustration.
• Each section of this manual provides you with the
information you need to perform operations in each
mode. Further details and technical information can be
found in the “Reference” section.
General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press B to illuminate
the display.
Timekeeping Mode
World Time Mode
Stopwatch Mode
Countdown Timer Mode
Alarm Mode
Press
.
Daylight Saving Time (DST)
Timekeeping
Daylight Saving Time (summer time) advances the time setting by one hour from Standard
Time. Remember that not all countries or even local areas use Daylight Saving Time.
Use the Timekeeping Mode to set and view the current
time and date.
PM indicator
Day of week
Day
To toggle the Timekeeping Mode time between DST and Standard Time
Read this before you set the time and date !
The times displayed in the Timekeeping Mode and World
Time Mode are linked. Because of this, make sure you
select a city code for your Home City (the city where you
normally use the watch) before you set the time and date.
• To view the current Home City code setting, press A
while in the Timekeeping Mode.
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
DST indicator
2. Press C twice to display the DST setting screen.
3. Press D to toggle between Daylight Saving Time (On)
and Standard Time (OF).
4. Press A to exit the setting screen.
• The DST indicator is displayed on the Timekeeping
Mode and Alarm Mode screen while Daylight Saving
Time is turned on.
• For full information on city codes, see the “City Code
Table”.
Seconds
Hour : Minutes
On/Off status
To set the time and date
1. In the Timekeeping Mode, hold down A until the
seconds start to flash, which indicates the setting
screen.
World Time
2. Press C to move the flashing in the sequence shown
below to select other settings.
World Time shows the current time in 48 cities (29 time
zones) around the world.
City code
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing C.
To view the time for another city code
In the World Time Mode, press D to scroll eastwardly
through city codes.
• For full information about city codes, see the “City Code
Seconds
Day
City Code
DST
Year
Hour
Minutes
Table”.
• If the current time shown for a city is wrong, check your
Timekeeping Mode time and Home City code settings
and make the necessary changes.
Current time in the zone
of the selected city code
Month
12/24-Hour Format
3. When the setting you want to change is flashing, use D and B to change it as
described below.
To toggle a city code time between Standard Time and Daylight Saving Time
1. In the World Time Mode, use D to display the city code
Screen To do this:
Reset the seconds to 00
Do this:
DST indicator
(time zone) whose Standard Time/Daylight Saving Time
setting you want to change.
Press D.
2. Hold down A for about one second to toggle between
Daylight Saving Time (DST indicator displayed) and
Standard Time (DST indicator not displayed).
• The DST indicator is on the display whenever you
display a city code for which Daylight Saving Time is
turned on.
• Note that the DST/Standard Time setting affects only the
currently displayed city code. Other city codes are not
affected.
• In the World Time Mode, you can switch the city code
you currently have selected as your Timekeeping Mode
Home City between Standard Time and DST. The
setting you select in the World Time Mode will also be
applied in the Timekeeping Mode.
Change the city code
Use D (east) and B (west).
Press D.
Toggle between Daylight Saving Time (On)
and Standard Time (OF)
Change the hour or minutes
Use D (+) and B (–).
Press D.
Toggle between 12-hour (12H) and 24-hour
(24H) timekeeping
Change the year, month, or day
Use D (+) and B (–).
• See “Daylight Saving Time (DST)” for details about the DST setting.
4. Press A to exit the setting screen.
• Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
• With the 12-hour format, the P (PM) indicator appears on the display for times in the
range of noon to 11:59 p.m. and the A (AM) indicator appears for times in the range
of midnight to 11:59 a.m.
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all modes.
• The year can be set in the range of 2000 to 2099.
• The watch’s built-in full automatic calendar makes allowances for different month
lengths and leap years. Once you set the date, there should be no reason to change
it except after you have the watch’s battery replaced.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
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Operation Guide 3120
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Button Operation Tone
The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
• Even if you turn off the button operation tone, the alarm,
Hourly Time Signal, and Countdown Timer Mode alarm
all operate normally.
To turn the button operation tone on and off
In any mode (except when a setting screen is on the
display), hold down C to toggle the button operation tone
on ( not displayed) and off ( displayed).
• Holding down C to turn the button operation tone on or off also causes the watch’s
current mode to change.
• The
off.
indicator is displayed in all modes when the button operation tone is turned
Auto Return Features
• If you leave the watch in the Alarm Mode for two or three minutes without performing
any operation, it automatically changes to the Timekeeping Mode.
• If you leave a screen with flashing digits or a cursor on the display for two or three
minutes without performing any operation, the watch automatically saves any
settings you have made up to that point and exits the setting screen.
Scrolling
The B and D buttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls at high speed.
Initial Screens
When you enter the World Time or Alarm Mode, the data you were viewing when you
last exited the mode appears first.
World Time
• The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
• All World Time Mode times are calculated from the current Home City time in the
Timekeeping Mode using UTC time differential values.
• The UTC differential is a value that indicates the time difference between a
reference point in Greenwich, England and the time zone where a city is located.
• The letters “UTC” is the abbreviation for “Coordinated Universal Time”, which is the
world-wide scientific standard of timekeeping. It is based upon carefully maintained
atomic (cesium) clocks that keep time accurately to within microseconds. Leap
seconds are added or subtracted as necessary to keep UTC in sync with the Earth’s
rotation.
City Code Table
City
Code
UTC
Differential
City
Other major cities in same time zone
PPG
HNL
ANC
YVR
Pago Pago
Honolulu
Anchorage
Vancouver
–11.0
–10.0
–09.0
–08.0
Papeete
Nome
Las Vegas, Seattle/Tacoma, Dawson City
SFO San Francisco
LAX
DEN
MEX
CHI
Los Angeles
Denver
Mexico City
Chicago
–07.0
–06.0
El Paso, Edmonton
Winnipeg, Houston, Dallas/Fort Worth, New Orleans
MIA
Miami
–05.0
Montreal, Detroit, Boston, Panama City, Havana, Lima,
Bogota
La Paz, Santiago, Port Of Spain
NYC
CCS
YYT
New York
Caracas
St. Johns
–04.0
–03.5
–03.0
–01.0
+00.0
RIO Rio De Janeiro
RAI
LIS
LON
BCN
PAR
MIL
ROM
BER
ATH
Sao Paulo, Buenos Aires, Brasilia, Montevideo
Dublin, Casablanca, Dakar, Abidjan
Praia
Lisbon
London
Barcelona
Paris
Milan
Rome
Berlin
Athens
+01.0
+02.0
+03.0
Amsterdam, Algiers, Hamburg, Frankfurt, Vienna,
Stockholm, Madrid
Helsinki, Beirut, Damascus, Cape Town
JNB Johannesburg
IST
CAI
Istanbul
Cairo
JRS
MOW
JED
THR
DXB
KBL
KHI
MLE
DEL
DAC
RGN
BKK
SIN
Jerusalem
Moscow
Jeddah
Tehran
Dubai
Kabul
Karachi
Male
Kuwait, Riyadh, Aden, Addis Ababa, Nairobi
+03.5
+04.0
+04.5
+05.0
Shiraz
Abu Dhabi, Muscat
Delhi
Dhaka
+05.5
+06.0
+06.5
+07.0
+08.0
Mumbai, Kolkata, Colombo
Yangon
Bangkok
Singapore
Hong Kong
Beijing
Jakarta, Phnom Penh, Hanoi, Vientiane
Kuala Lumpur, Taipei, Manila, Perth, Ulaanbaatar
HKG
BJS
SEL
TYO
ADL
GUM
SYD
NOU
WLG
Seoul
Tokyo
+09.0
Pyongyang
Adelaide
Guam
Sydney
Noumea
Wellington
+09.5
+10.0
Darwin
Melbourne, Rabaul
+11.0
+12.0
Port Vila
Christchurch, Nadi, Nauru Island
*Based on data as of December 2006.
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