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Operation Guide 3134 3205
2
Radio-controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting
accordingly.
• This watch is designed to pick up the time calibration signals transmitted in
Germany (Mainflingen), England (Anthorn), the United States (Fort Collins)
and Japan.
• See the information under “Signal Reception Troubleshooting” if you
experience problems with time calibration signal reception.
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time
calibration signal. You also can perform a manual procedure to set the time
and date, when necessary.
• The first thing you should do after purchasing this watch is to specify
your Home City (the city where you normally will use the watch). For
more information, see “To specify your Home City”.
• When using the watch outside the areas covered by the time signal
transmitters, you will have to adjust the current time setting manually as
required. See “Timekeeping” for more information about manual time
settings.
• The U.S. time calibration signal can be picked up by the watch while in
North America. The term “North America” in this manual refers to the area
that consists of Canada, the continental United States, and Mexico.
• Using this watch in a country covered by a time calibration that is different
from the countries it supports may result in incorrect time indication due to
local application of summer time, etc.
To specify your Home City
1. In the Timekeeping Mode, hold down E until
the city code starts to flash, which indicates
the setting screen.
2. Press A (east) and C (west) to select the
city code you want to use as your Home City.
LON : London
PAR, BER : Paris, Berlin, Milan, Rome,
Amsterdam, Hamburg, Frankfurt,
Vienna, Barcelona, Madrid
ATH : Athens
HKG, TYO, SEL : Hong Kong, Tokyo, Seoul
HNL : Honolulu
ANC : Anchorage, Nome
LAX : Los Angeles, San Francisco, Las Vegas, Seattle/Tacoma,
Vancouver, Tijuana
DEN: Denver, El Paso, Edmonton, Culiacan
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
City code
Hour :
Minute
PM indicator
Second
Month – Day
CHI : Chicago, Houston, Dallas/Fort Worth, New Orleans, Winnipeg,
Mexico City
NYC: New York, Detroit, Miami, Boston, Montreal
• For full information on city codes, see the “City Code Table”.
• Note that this watch does not have a city code that corresponds to
Newfoundland.
3. Press E to exit the setting screen.
• Normally, your watch should show the correct time as soon as you select
your Home City code. If it does not, it should adjust automatically after the
next auto receive operation (in the middle of the night). You also can
perform manual receive or you can set the time manually.
• The watch will receive the time calibration signal automatically from the
applicable transmitter (in the middle of the night) and update its settings
accordingly. For information about the relationship between city codes and
transmitters, see “Time Calibration Signal Reception” and “Transmitters”.
• See the maps under “Approximate Reception Ranges” for information about
the reception ranges of the watch.
• Under factory default settings, auto receive is turned off for all of the
following city codes: HKG (Hong Kong), HNL (Honolulu), and ANC
(Anchorage). For details about turning on auto receive for these city codes,
see “To turn auto receive on and off”.
• You can disable time signal reception, if you want. See “To turn auto receive
on and off” for more information.
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration
signal: auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically
up to six times a day. When any auto receive is successful, the remaining
auto receive operations are not performed. For more information, see “About
Auto Receive”.
• Manual Receive
Manual receive lets you start a time calibration receive operation with the
press of a button. For more information, see “To perform manual receive”.
• Proper signal reception can be difficult or even impossible under the
conditions listed below.
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to seven minutes, but in
some cases it can take as long as 14 minutes. Take care that you do not
perform any button operations or move the watch during this time.
Inside or
among
buildings
Inside a
vehicle
Near a
construction
site, airport,
or other
sources of
electrical
noise
Near high-
tension
power lines
Among or
behind
mountains
Near
household
appliances,
office
equipment,
or a mobile
phone
• The time calibration signal the watch will attempt to pick up depends on its
current Home City code setting as shown below.
Home City Code
LON,
PAR, BER, ATH
HKG*, TYO, SEL
HNL*, ANC*, LAX,
DEN, CHI, NYC
Frequency
60.0 kHz
77.5 kHz
40.0 kHz
60.0 kHz
60.0 kHz
Transmitter
Anthorn (England)
Mainflingen (Germany)
Fukushima (Japan)
Fukuoka/Saga (Japan)
Fort Collins, Colorado
(United States)
* The areas covered by the HKG, HNL, and ANC city codes are quite far
from the time calibration signal transmitters, and so certain conditions
may cause problems with signal reception.
Anthorn
Mainflingen
1,500 kilometers
500 kilometers
Fort
Collins
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
1,000
kilometers
1,000
kilometers
Fukuoka/Saga
500
kilometers
Fukushima
500
kilometers
Approximate Reception Ranges
U.K. and German Signals U.S. Signal
Japan Signals
• Signal reception may not be possible at the distances noted below during
certain times of the year or day. Radio interference also may cause
problems with reception.
Mainflingen (Germany) or Anthorn (England) transmitters: 500
kilometers (310 miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310
miles)
• 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.
Important!
• When getting ready to receive the time calibration signal, position the watch
as shown in the nearby illustration, with its 12 o’clock side facing towards a
window. This watch is designed to receive a time calibration signal late at
night. Because of this, you should place the watch near a window as shown
in the illustration when you take it off at night. Make sure there are no metal
objects nearby.
12 o’clock
or
• Make sure the watch is facing the right way.