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Operation Guide 4304 4305
3
3. Select the setting you want to change, and then use A to change it as shown
below.
Screen To do this:
Cycle through time zones
To ggle between Daylight Saving Time (
), Standard
Time ( ), or Auto DST ( )
Reset the seconds to
Change the hour
Change the minutes
Change the year
Change the month
Do this:
Press A.
Press A.
Press A.
Press A.
Press A.
Press A.
Press A.
Change the day
Cycle through day of the week languages
: English
: Spanish
: French
: German
: Italian
To ggle signal auto receive on (
) and off ( )
(This setting is possible only for time zones that support
time calibration signal reception.)
Press A.
Press A.
Press A.
• When setting the day, the watch automatically will skip days (30 and 31) that are
not included in the currently selected month. If you can’t select 30 or 31 when you
want to, check to make sure that the proper month is selected.
4. Press B to exit the setting mode.
•
This will cause the hands to move to the current time, and resume normal movement.
Note
• For more information, see “Daylight Saving Time (DST)” below.
• The auto receive setting is used for time calibration signal reception only. See “About
Auto Receive” for details.
Daylight Saving Time (DST)
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.
The time calibration signals transmitted from Mainflingen (Germany), Rugby
(England), or Fort Collins (the United States) include both Standard Time and DST
data. When the Auto DST setting is turned on, the watch switches between Standard
Time and DST (summer time) automatically in accordance with the signals.
• The time calibration signals transmitted from Fukushima and Fukuoka/Saga (Japan)
do not include summer time data.
• The default DST setting is Auto DST (
At) whenever you select 0, +1, +2, E (GMT
–5), C (GMT–6), M (GMT–7), or P (GMT–8) as your Home City code.
• If you experience problems receiving the time calibration signal in your area, it is
probably best to switch between Standard Time and Daylight Saving Time (summer
time) manually.
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down B until the currently selected Time Zone
appears on the display. This is the setting mode.
2. Press B and the DST setting screen appears.
3. Use A to cycle through the DST settings in the sequence shown below.
4. When the setting you want is selected, press B nine times to exit the setting
screen.
Auto DST (
At
) DST off (
OF
)DST on (
On
)
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.
Auto Return Features
• If you leave the watch in the Home Position Adjustment Mode for about three
minutes without performing any operation, it returns to the Timekeeping Mode
automatically.
• If you do not perform any operation for about three minutes while a setting mode is
selected, the watch will exit the setting mode automatically.
Button Operation Timing
This watch is designed so the function of a button is executed when you release the
button, not when you press it.
Scrolling
• The A button is used to change the hand setting in various setting modes. In most
cases, holding down the A button will start high-speed movement of the applicable
hand(s).
• High-speed movement of the hands will continue until it completes a 12-hour cycle,
or until you press A button to stop it.
Radio-controlled Timekeeping Precautions
• Strong electrostatic charge can result in the wrong time being set.
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
• The time calibration signal bounces off the ionosphere. Because of this, such factors
as changes in the reflectivity of the ionosphere, as well as movement of the
ionosphere to higher altitudes due to seasonal atmospheric changes or the time of
day may change the reception range of the signal and make reception temporarily
impossible.
• Even if the time calibration signal is received properly, certain conditions can cause
the time setting to be off by up to one second.
• The current time setting in accordance with the time calibration signal takes priority
over any time settings you make manually.
• The watch is designed to update the date and day of the week automatically for the
period January 1, 2001 to December 31, 2098. Setting of the date by the time
calibration signal cannot be performed starting from January 1, 2099.
• This watch can receive signals that differentiate between leap years and non-leap
years.
• If you are in an area where proper time calibration signal reception is impossible, the
watch keeps time within ±20 seconds a month at normal temperature.
• If you have problems with proper time calibration signal reception or if the time
setting is wrong after signal reception, check your Home Time Zone (GMT
differential) setting.
The following are the initial factory defaults for this setting.
Module 4304: GMT +1.0
Module 4305: GMT 0.0
• To find out the module number of your watch, look at its
back cover. The Module number (4304 or 4305) is
engraved inside the box on the back cover.
Transmitters
The time calibration signal received by this watch depends on the currently
selected home time zone.
• When a U.S. time zone is selected, the watch receives the time calibration signal
transmitted from the United States (Fort Collins).
• When a Japanese time zone is selected, the watch receives the time calibration
signal transmitted from the Japan (Fukushima and Fukuoka/Saga).
• When a European time zone is selected, the watch receives the time calibration
signals transmitted from Germany (Mainflingen) and England (Rugby).
The following tables show the reception priority for the European signals.
4304
Module 4304
Module 4305
In this case:
The first signal search operation after
factory default settings are in effect.
The first signal search operation after
the Home Time Zone has been
changed.
The watch does this:
1. Checks the Mainflingen signal first.
2. If the Mainflingen signal cannot be
received, checks the Rugby signal.
1. Checks the Rugby signal first.
2. If the Rugby signal cannot be received,
checks the Mainflingen signal.
In this case:
The first signal search operation after
factory default settings are in effect.
The first signal search operation after
the Home Time Zone has been
changed.
The watch does this:
1. Checks the Rugby signal first.
2. If the Rugby signal cannot be received,
checks the Mainflingen signal.
1. Checks the Rugby signal first.
2. If the Rugby signal cannot be received,
checks the Mainflingen signal.
Timekeeping
• The year can be set in the range of 2001 to 2098.
• 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 current time for all time zones in the Timekeeping Mode is calculated in
accordance with the Greenwich Mean Time (GMT) differential of each zone, based
on your Home Time Zone time setting.
• GMT differential is calculated by this watch based on Universal Time Coordinated
(UTC*) data.
*UTC 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. The reference point for UTC is Greenwich,
England.
Display GMT Major cities in same time zone
Indicator
*
1
Differential
(
Letters in parentheses are city codes.*
1
)
Time Zone Table
–11.0
–10.0
–09.0
–08.0
–07.0
–06.0
–05.0
–04.0
–03.0
–02.0
–01.0
+00.0
+01.0
Pago Pago (PPG)
Honolulu (HNL), Papeete
Anchorage (ANC), Nome
Los Angeles (LAX), San Francisco, Las Vegas, Vancouver,
Seattle/Tacoma, Dawson City
Denver (DEN), El Paso, Edmonton
Chicago (CHI), Houston, Dallas/Fort Worth,
New Orleans, Mexico City, Winnipeg
New York (NYC), Montreal, Detroit, Miami, Boston,
Panama City, Havana, Lima, Bogota
Caracas (CCS), La Paz, Santiago, Port Of Spain
Rio De Janeiro (RIO), Sao Paulo, Buenos Aires, Brasilia, Montevideo
Praia (RAI)
London (LON), Dublin, Lisbon, Casablanca, Dakar, Abidjan
Paris (PAR), Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Berlin (BER), Frankfurt, Vienna, Stockholm
+02.0
+03.0
+04.0
+05.0
+06.0
+07.0
+08.0
+09.0
+10.0
+11.0
+12.0
Cairo (CAI), Jerusalem (JRS), Helsinki, Istanbul, Beirut, Damascus,
Cape Town, Athens
Jeddah (JED), Kuwait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Dubai (DXB), Abu Dhabi, Muscat
Karachi (KHI), Male
Dhaka (DAC), Colombo
Bangkok (BKK), Jakarta, Phnom Penh, Hanoi, Vientiane
Hong Kong (HKG), Singapore, Kuala Lumpur, Beijing, Taipei, Manila,
Perth, Ulaanbaatar
Tokyo (TYO), Seoul, Pyongyang
Sydney (SYD), Melbourne, Guam, Rabaul
Noumea (NOU), Port Vila
Wellington (WLG), Christchurch, Nadi, Nauru Island
• Based on data as of December 2004.
*
1
Display indicators and city codes are marked on the back cover of the watch.