Operation Guide 2734 58 3748 9
5
• The current time setting in accordance with the time calibration signal takes priority
over any time settings y ou make .
• The watch is designed to automatically update the date and da y of the week for the
period January 1, 2000 to December 31, 2039. Setting of the date b y the time
calibration signal cannot be performed starting from January 1, 2040.
• This watch can receive signals that diff erentiate between leap years and non-leap
years.
• Though this watch is designed to receive both time data (hour , minutes, seconds)
and date data (year , month, day), certain signal conditions can limit reception to
time data only .
• Normally , the signal reception date shown by the Last Signal screen is the date
data included in the received time calibr ation signal. When only time data is
received, howe ver, the Last Signal screen sho ws date as kept in the Timekeeping
Mode at the time of signal reception.
• If you are in an area where proper time calibration signal reception is impossib le,
the watch keeps time within ± 20 seconds a month at normal temperature.
• If you have prob lems with proper time calibration signal reception or if the time
setting is wrong after signal reception, check your tr ansmitter, current city code ,
DST (summer time), and auto receive settings. The f ollowing are the initial f actory
defaults f or these settings.
Setting
T ransmitter
City code
DST (summer time)
Auto receiv e
Initial Factory Default
A/T
LON (London) (Module 2734 and 3749)
BER (Berlin) (Module 2758 and 3748)
A (Auto switching)
DST
ON (Auto receiv e)
R/C
T ransmitters
This watch is designed to receive the time calibration signal tr ansmitted from Rugby ,
England and the signal from Mainflingen, Germany . Y ou can select either one of the
transmitters, or you can configure the w atch to automatically select the transmitter
that has the strongest signal.
• The following e xplains how the watch determines which transmitter it should check
first while the watch is configured f or auto transmitter search (
A/T).
In this case:
The first signal auto search operation
after factory default settings are in eff ect,
or after the city code has been changed
Any case other than the abov e.
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 last successfully received
signal first.
2. If the last successfully received signal
cannot be received, chec ks the other
signal.
Module 2734 and 3749
In this case:
The first signal auto search operation
after factory default settings are in eff ect,
or after the city code has been changed
Any case other than the abov e.
The watch does this:
1. Checks the Mainflingen signal first.
2. If the Mainflingen signal cannot be
received, chec ks the Rugby signal.
1. Checks the last successfully received
signal first.
2. If the last successfully received signal
cannot be received, chec ks the other
signal.
Module 2758 and 3748
• Since the watch checks signals from both transmitters when
A/T is selected as
the transmitter setting, the signal receive oper ation can take as long as 12 minutes.
• T o find out the module number of your watch, look at its
back cov er. The Module number (2734, 2758, 3748, or
3749) will be engrav ed inside the box on the bac k
cover .
2734
2758
T o select a transmitter
1. In the Timek eeping Mode, hold down A until the
transmitter indicator star ts to flash, which indicates the
setting screen.
2. Use D to scroll through availab le transmitter settings
until the one you want to select is displa yed.
• Note that --- appears in place of the transmitter indicator when any city code
besides
LON, PAR, BER, or ATH is selected as the Home City code. This
indicates that you cannot specify a transmitter .
3.Press A twice to exit the setting screen.
T o set up the watch to do this:
Automatically select the Rugb y or Mainflingen signal
Receive the Mainflingen signal
Receive the Rugb y signal
Select this transmitter setting:
A/T
DCF
MSF
Timekeeping
• 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.
• The day of the week is automatically displa yed in accordance with the date (year ,
month, and day) settings .
• The year can be set in the range of 2000 to 2039.
• The watch’ s built-in full automatic calendar makes allow ances for different month
lengths and leap years. Once you set the date, there should be no reason to
change it except after you ha ve the watch’s battery replaced.
• The current time for all city codes in the Timekeeping Mode and World Time Mode
is calculated in accordance with the Greenwich Mean Time (GMT) differential f or
each city , based on your Home City time setting.
• GMT differential is calculated by this w atch based on Universal Time Coordinated
(UTC*) data.
* The letters “UTC ” stands for “ Universal Time Coordinated,” 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. The reference point for UTC is
Greenwich, England.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all other modes.
• With the 12-hour format, the P (PM) indicator appears on the display f or times in
the range of noon to 11:59 p .m. and no indicator appears f or times in the range of
midnight to 11:59 a.m.
• With the 24-hour format, times are display ed in the range of 0:00 to 23:59. The
indicator 24 indicates the 24-hour format.
Backlight Precautions
The backlight uses an EL (electro-luminescent) panel for easy reading in the dark.
In any mode, press B to illuminate the displa y for about one second.
• The electro-luminescent panel that provides illumination loses power after v ery
long use.
• The illumination provided by the backlight ma y be hard to see when viewed under
direct sunlight.
• The watch may emit an audib le sound whenever the displa y is illuminated. This is
due to vibration of the EL panel used f or illumination, and does not indicate
malfunction.
• The backlight automatically turns off whenev er an alarm sounds.
• Frequent use of the bac klight shortens the batter y life.
Honolulu
Anchorage
Los Angeles
Denver
Chicago
New Y ork
Caracas
Rio De Janeiro
London
Par i s
Berlin
City
City
GMT
Other major cities in same time zone
Code
Differential
City Code T able
– – –
HNL
ANC
LAX
DEN
CHI
NYC
CCS
RIO
– – –
– – –
GMT
LON
PA R
BER
–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 P ago
Papeete
Nome
San Fr ancisco, Las V egas, V ancouver,
Seattle/T acoma, Dawson City
El Paso , Edmonton
Houston, Dallas/Fort W or th,
New Orleans, Mexico City , Winnipeg
Montreal, Detroit, Miami, Boston,
Panama City , Havana, Lima, Bogota
La P az, Santiago, P or t Of Spain
Sao P aulo, Buenos Aires, Brasilia, Monte video
Praia
Dublin, Lisbon, Casablanca, Dakar , Abidjan
Milan, Rome, Madrid, Amsterdam, Algiers, Hamburg,
Fr ankfur t, Vienna, Stockholm, Barcelona
Athens
Cairo
Jerusalem
Jeddah
T ehran
Dubai
Kabul
Karachi
Delhi
Dhaka
Y angon
Bangkok
Hong Kong
Seoul
T okyo
Adelaide
Sydney
Noumea
Wellington
+02.0
+03.0
+03.5
+04.0
+04.5
+05.0
+05.5
+06.0
+06.5
+07.0
+08.0
+09.0
+09.5
+10.0
+11.0
+12.0
Helsinki, Istanbul, Beirut, Damascus,
Cape T own
Kuw ait, Riyadh, Aden, Addis Ababa, Nairobi, Moscow
Shiraz
Abu Dhabi, Muscat
Male
Mumbai, K olkata
Colombo
Jakarta, Phnom Penh, Hanoi, Vientiane
Singapore, K uala Lumpur, Beijing, T aipei, Manila, Perth,
Ulaanbaatar
Pyongyang
Darwin
Melbourne, Guam, Rabaul
P or t Vila
Christchurch, Nadi, Nauru Island
AT H
CAI
JRS
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
SEL
TY O
ADL
SYD
NOU
WLG
• Based on data as of June 2004.