Junghans Worldtimer Chronograph User manual

Worldtimer
Chronograph

3736
ENGLISH
Congratulations on purchasing the Worldtimer Chronograph.
The Worldtimer Chronograph – a perfect manager of time.
With its innovative analogue time display, the digital LC display with
STN technology offers you multivarious functions. The Junghans
multi-frequency radio-controlled movement J615.96 permits automatic
synchronisation with time signal transmitters. The Worldtimer
Chronograph is equipped with a stainless steel case, convex and anti-
reflection coating sapphire crystal, caseback with sapphire crystal,
crocodile leather strap with stainless steel folding clasp and is water-
resistant up to 5 atm.
Please read the following information on the general functions of radio-
controlled watches and on how to use your Junghans Worldtimer
Chronograph carefully so that you can benefit from all functions.
We hope you will get great pleasure from this very special timekeeping
instrument.
Yours,
Uhrenfabrik Junghans GmbH & Co. KG

3938
Contents Page
1. Radio-controlled technology – state-of -the-art time measurement 39
1.1 Usable time signal transmitters 40
2. Automatic time synchronisation 42
3. unctions 43
3.1 Base mode 44
3.2 Additional functions 45
4. Description of functions and their operating 47
4.1 Display date / seconds 47
4.1.1 Setting time zone 1st time 46
4.2 Date / calendar week 48
4.2.1 Language selection (day of the week display) 49
4.3 2nd time 50
4.4 Reception indicator 51
4.4.1 Manual synchronisation (transmitter call) 52
4.4.2 RC on/off 53
4.4.3 Adjusting the contrast of digital display 55
4.5 Chrono with LAP and SPLIT function 56
4.6 10 hour countdown timer 58
4.7 Alarm 60
5. Restart / starting up procedure 62
5.1 Manual start 63
5
.1.1 Manual setting of time 63
5
.1.2 Manual setting of date 65
6. Readiness for use 66
7. General information 67
8. Technical information 69
1. Radio-controlled technology – state-of -the-art time measurementz
5,000 years have passed since timekeeping began, first with sun dials,
followed by water clocks, the mechanical clocks of the 13th century, quartz
watches and now culminating in radio-controlled watches.
With good reception the watch never goes wrong or needs to be set. The
Junghans radio-controlled watch is absolutely precise, as it is linked by radio
frequency to the time control system of the most accurate clocks in the
world.
or Europe this is the Caesium Time Base at the Physikalisch-Technische
Bundesanstalt in Braunschweig (PTB, National Metrology Institute).
or North America it is the U.S. Commerce Department's Caesium Time Base
at the National Institute of Standards and Technology (NIST) in Boulder,
Colorado.
or Japan it is the National Institute of Information and Communications
Technology (NICT) at the Ministry of Internal Affairs and Communications in
Tokyo.
All these clocks are so accurate, that they are expected to deviate by no more
than 1 second in a million years.

4140
1.1 Usable time signal transmitters
Your Junghans multi-frequency radio-controlled watch is capable of fully
automatic reception of time signals from the following transmitters
– DC 77 in Mainflingen ( rankfurt a. M.) for Europe
– WWVB in ort Collins, Colorado (USA) for North America
– JJY40 on Mount Othakadoya (near Tokyo in the North East of the
country) for Japan
– JJY60 on Mount Hagane (in south western Japan) for Japan, the east
coast of China (Shanghai), South Korea and parts of Taiwan.
With good reception, the Junghans Worldtimer Chronograph will thus
always show the absolutely correct time within any of these four transmis-
sion areas. The Junghans Worldtimer Chronograph automatically synchroni-
ses itself overnight with the DC 77, WWVB, JJY40 and JJY60 time signal
transmitters.
If reception fails due to interference (e. g. thunderstorms, electrical applian-
ces), the Junghans Worldtimer Chronograph will automatically retry signal
reception in the following night.
It is also possible to use a ”transmitter call” to synchronise the time manual-
ly, for example at a location where reception conditions are better.
The most recent time information received is stored internally in a time
memory. This original time continues to be kept using a high-precision 32kHz
quartz movement until the time is synchronised again. The radio-controlled
time synchronisation of your Junghans Worldtimer Chronograph not only
ensures an always precise display of the time. Given good reception, it also
takes care of switching from winter to summer time, and vice versa, auto-
matically (at night).
Please note, that this does not apply to the time signal transmitter WWVB
(USA). (see chapter 2)
If you travel to a country with a different time zone, the time zone adjust-
ment facility on your Junghans Worldtimer Chronograph makes it easy to
switch to local time.

4342
2. Automatic time synchronisation
The daily, fully automatic time synchronisation will be done at night. During
this period the LC display is switched off (no display).
After successful automatic time synchronisation, the original mode is
displayed in the LC display. The date is always advanced automatically by the
time signal and takes also the 29th ebruary into account in leap years.
If all attempts at picking up a signal do not lead to clear synchronisation, the
reception indicator is increased by 1 (see also description of mode reception
indicator in chapter 4.4). urther subsequent days without synchronisation
are added. During these days, your watch continues to run with the accura-
cy of a quartz watch using the internal time memory. The next successful
pickup of a signal synchronises your watch and resets the reception indica-
tor to ”0”.
The following special feature applies to the WWVB (USA) time signal
transitter:
After a successful transmitter call or change of battery (restart), your
Junghans Worldtimer Chronograph always displays Pacific Standard Time.
Due to the non-uniform changeover from summer to winter time and the
differing time zones in individual US states, you can adjust winter time,
summer time and the time zone settings manually (see 4.1.1 and 4.3 resp.).
Any settings for differing time zones or summer/winter times, based on
your location at the time, will be retained during a transmitter call or during
automatic synchronisation.
Recommendation: To ensure the best possible conditions for overnight
synchronisation, the watch should not be worn and, if possible, not left near
to any electrical appliances, mobile or cordless phone.
Important note:
When travelling into a different reception area (for example, from Germany
to Japan), automatic time and transmitter synchronisation will be perfor-
med at the next attempt of the watch to pick up a signal. If the watch fails
to pick up any transmitter signal, please perform a manual transmitter call
(see chapter 4.4.1
Manual synchronisation ).
3. Functions
The Junghans Worldtimer Chronograph features a variety of functions which
are shown in the LC display. These are operated by buttons on the left and
right of the watch case.
T2 SET
ON-OFF LA
T1 MODE
T3 +
START
STO
T5 –
S LIT/
RESET
T4
LIGHT
USHER LOCK

4544
3.1 Base mode
In base mode the LC display shows the day of the week and the date as well
as the seconds.
In this mode the watch can be adjusted via the following buttons:
xT1 MODE
xT2 SET
xT4 Light/pusher lock
To avoid any accidental changing of the settings, the pusher lock can be
activated.
The pusher lock is activated by pressing the T4 light button > 3 seconds
(display ”LOC” in the LC display). To deactivate the pusher lock, press the T4
light button again for > 3 seconds (display UNL in LC display). The pusher lock
cannot be activated during the chrono, timer or alarm functions.
3.2 Additional functions
In addition, the following func-
tions can be called about the T1
”MODE” button successively:
Display mode 1:
Date / seconds
Display mode 2:
Date / calendar week
Display mode 3:
2nd time

4746
Display mode 4:
Reception
Display mode 5:
Chrono
Display mode 6:
Timer
Display mode 7:
Alarm
The languages German, English and rench are available for the display.
Selecting the appropriate language is described in chapter 4.2.1.
The set mode remains in the LC display until another mode is entered via the
T1 ”MODE” button.
4. Description of functions and their operating
4.1 Display date / seconds
Displays actual date and seconds
4.1.1 etting time zone 1st time (analogue display)
Press the T1 ”MODE” button repeatedly
until you reach the display for date and
seconds.
By pressing the T2 ”SET” button for > 3
seconds you reach the mode for setting
time zone 1st time. The current hour
starts to flash.
T2
T1

4948
By pressing the T3”+” or T5”–” buttons
respectively, the displayed digital time
can be adjusted in steps of 1 hour. The
analogue hour disc will be follow the
adjustment. The date will be displayed
according to the setted time zone. This
function can prove useful during longer
stays overseas. To confirm, please press
the T2 ”SET” button. If a button is not
pressed within approx. 9 seconds the
setting will be automatically confirmed.
4.2 Date / calendar week
Display of actual date, the calendar week is shown in place of the seconds.
Press the T1 ”MODE” button repeatedly until you reach the display for date
and seconds. By the repeated press of the T1 ”MODE” button the calendar
week is indicated.
T3T2
T5
4.2.1 etting the language
On delivery, the day of the week display
on your Junghans Worldtimer
Chronograph is set to the German lang-
uage. To change to English or rench,
press the T1 ”MODE” button repeatedly
until you reach the mode ”Date / calen-
dar week”. By pressing the T2 ”SET” but-
ton for > 3 seconds you enter the mode
for setting the language. The ”D” symbol
will start to flash.
Using buttons T3 ”+” or T5 ”–” you can set
the favoured language. To confirm, plea-
se press the T2 ”SET” button, if a button
is not pressed within approx. 9 seconds
the setting will be automatically con -
firmed.
= German day of the week display
= English day of the week display
= rench day of the week display
The calendar week is displayed in German and English by ”W52”, in rench by
”SE52”.
T2
T1
T3T2
T5

5150
4.4 Reception indicator
In the reception indicator mode you
recognise whether your watch has been
synchronised with the signals of a trans-
mitter.
The following transmitter displays are
possible:
DC 77,5 kHz
WWVB 60 kHz
JJY 40/60 kHz
Press the T1 ”MODE” button repeatedly until you reach the reception indica-
tor mode. The code for the transmitter will appear in the upper part of the LC
display, a number is displayed in the lower part, the reception indicator.
If the reception indicator shows ”0”, the watch has picked up the signal pro-
perly during overnight synchronisation. The numbers ”1-9” show for how
many days the watch has been unable to synchronise automatically due to
bad reception conditions. After the next successful synchronisation the indi-
cator reverts back to ”0”.
T1
If the time zone has been adjusted by more than one hour, it is not possible
to display the calendar week. Instead of the calendar week the last two digits
of the year are displayed.
ollowing a restart, the watch automatically resets to the German language
for reception in Europe (reception of DC 77), and to the English language for
reception in USA or Japan.
4.3 2nd time
The 2nd time provides you display a
further time in the LC display, which is
independent from the analogue time
(for example, if you are on holiday in
another time zone and wish to see the
time at home).
Press the T1 ”MODE” button repeated-
ly until you reach the ”2nd time = T2”
mode. By pressing the T2 ”SET” button
> 3 seconds the function is released
(hours and minutes in LC display start
to flash).
Adjustment of the 2nd time is done in steps of 15 minutes via the buttons T3
”+” or T5 ”–” respectively.
To confirm, please press button T2 ”SET”. If a button is not pressed within
approx. 9 seconds the setting will be automatically confirmed.
T3
T5
T2
T1

5352
4.4.1 Manual sychronisation (transmitter call)
Your Junghans Worldtimer Chronograph
can also be synchronised manually, via
the so-called transmitter call.
To do this, press the T2 ”SET” button for
> 3 seconds in the reception indicator
mode.
The minute hand begins to move and
stops at the 12.00 o'clock position.
During this reception phase the LC
display is switched off (no display).
Please keep the watch still during recep-
tion or put it down.
After the watch has picked up the time signal (after approx. 3 minutes) the
minute hand and the hour disc will automatically display the correct time.
The LC display changes back to the previous display. You can abort manual
synchronisation prematurely as soon as the minute hand has reached the
12.00 o'clock position. To do this, simply press one of the five buttons. The
minute hand will then return to the original time.
If manual synchronisation was successful, the reception indicator reverts
back to ”0”. If the transmitter call was not successful, the reception indicator
does not change and the minute hand reverts to the time it displayed prior
to the transmitter call.
T1
T2
4.4.2 RC on/off
You can switch reception off in the
reception indicator mode. This may
prove useful during longer stays abro-
ad outside the range of transmitters
to save battery power. To do this, press
buttons T2 ”SET” and T3”+” simultane-
ously for > 3 seconds.
Using buttons T3”+” and T5”–” you can
now select between
” ” and ” ” respectively.
In the ”RC/OF” mode your radio-controlled watch continues to function as a
precise quartz watch. The last two digits of the year are displayed in place of
the calendar week.
When returning to a region with time signal transmission, reception must
be switched back on (RC/ON) so that synchronisation can be performed either
automatically or manually.
”RC/OF” is shown by ”_ _ _” in place of a transmitter code.
T2 T3
T5

5554
Note:
In the ”RC/OF” mode you can perform the same functions as described under
5.1. manual start. The 1st time can then be changed manually to give the
precise second, the 2nd time in steps of 15 minutes, also the date, including
year and language. or this purpose it is not necessary for the minute hand
and the hour disc to be at the 12.00 o'clock position.
ATTENTION: Manual corrections in the ”RC/OF” mode will delete the stored
time from the transmitter!
4.4.3 Adjusting the contrast of the digital display
You can adjust the contrast setting of
the LC display in the reception indica-
tor mode. To do this, press the but-
tons T2 ”SET” and T5”–” simultaneous-
ly for > 3 seconds in the reception
indicator mode.
Using buttons T3”+” and T5”–” you
can choose between the values ”0”
(lowest contrast) and ”15” (strongest
contrast).
Note:
Increased contrast increases power
consumption.
T2
T5
T5
T3

5756
4.5 Chrono with LAP and PLIT function
Press the T1 ”MODE” button repeatedly
until you reach mode ”C”. The display
will give the hour, minute, second, 1/10
of a second and 1/100 of a second. The
maximum stop time is 10 hours. After
that the chronograph stops and the LC
display reverts to ”0 00 00 00”.
The chronograph is started and
stopped with the T3 ”start/stop”
button. While the chronograph is
running, the display ”C” is replaced by
the number ”1”.
By pressing the T5 ”SPLIT/RESET” but-
ton the counter is reset to ”0 00 00 00”.
The reset function can only achieved, if
the chronograph has been stopped
beforehand (display ”C”).
T1
T3
T5
SPLIT function
While the chronograph is running, the
current intermediate time can be
displayed by pressing the T5 ”SPLIT”
button. The chronograph continues to
run in the background. Press the T5
”SPLIT” button again to display the
running chronograph.
LAP function
While the chronograph is running, the
lap time can be displayed by pressing
the T2 ”SET-LAP” button.
The lap time is displayed for approx.
4 seconds and then reverts back to the
running chronograph. The 2nd lap is
displayed in the top left part of the LC
display by the number ”2”. The last ten
values can be stored.
By pressing the T3 ”START/STOP” but-
ton the chronograph is arrested.
T5
T2 T3

5958
By pressing the T2 ”SET-LAP” button
the lap times are displayed in sequen-
ce. Press the T3 ”START/STOP” button
again and the chronograph will conti-
nue running from the last arrested
time. By pressing the T5 ”RESET” but-
ton when the chronograph is arrested,
the counter is set to ”0 00 00 00” again.
4.6 10 hour count-down timer
Press the T1 ”MODE” button repeatedly
until the ”TIMER” mode is reached
(display ”T”).
T3T2
T5
T1
Setting the timer is performed with
buttons T3”+” and T5”–”. When pressed
briefly, the display advances in steps of
a second, continued pressing of the
button changes the display to fast
mode.
The timer is activated and deactivated by using the T2 ”SET” button.
When the timer reaches the reading ”0 00 00 00”, an acoustic signal is
sounded for approx. 10 seconds. The set time is kept.
In order to reset the timer from any optional value back to ”0 00 00 00”, press
the T3 ”+” and T5 ”–” buttons simultaneously for > 3 seconds in the deactiva-
ted timer mode.
T3T2
T5

6160
4.7 Alarm
Press the T1 ”MODE” button repeatedly
until you reach the ALARM ”A” mode.
Simultaneous pressing of the T3 ”+”
and T5 ”–” buttons for > 3 seconds will
give you a choice of 3 different alarm
repeat functions:
a.) ”SET AL --” for a single alarm
(alarm is deactivated after
alarm signal stops).
b.) ”SET AL 24” for a repeated
daily alarm (alarm remains
activated after alarm signal
stops).
c.) ” ” for weekday
alarm (alarm remains activ -
ated from Mo- ri and is de -
activated from Sat-Sun).
T1
T3
T5
Selection is via the buttons T3 ”+” and T5 ”–” respectively. Using the T2 ”SET”
button, the alarm repeat is confirmed.
The alarm time is set using buttons T3
”+” and T5 ”–”. Brief pressing changes
the time in one minute steps.
Keeping the button pressed longer, the
alarm time moves to fast mode.
Setting of the alarm time activates the
alarm automatically.
The alarm is activated and deactivated
by using the T2 ”SET” button. If the
alarm is activated, a bell appears in the
LC display for all MODES. On reaching
the alarm time, an acoustic signal is
sounded for approx. 10 seconds.
T3T2
T5

6362
5. Restart / set-up
After changing the battery, the watch is restarted automatically. After inser-
ting the battery, the minute hand and the hour disc will move to the 12.00
o'clock position and the watch commences with reception of the signal. The
LC display is switched off during this process. After a few minutes and follo-
wing successful reception, the watch displays the correct time automatical-
ly.
xAfter successful reception of the DC 77 signal, German local time is
displayed, the reception indicator for DC 77 is activated in the LC display
and the date is given with the weekday in German.
xAfter successful reception of the WWVB signal, Pacific Standard Time is
displayed, the reception indicator for WWVB is activated in the LC display
and the date is given with the weekday in English.
xAfter successful reception of the JJY40 or JJY60 signals, Japanese local
time is displayed, the reception indicator for JJY40 or JJY60 is activated in
the LC display and the date is given with the weekday in English.
If the watch is not able to receive a signal because the distance to a trans-
mitter is too great, the receiving process is aborted. However, every 6 hours
your Junghans Worldtimer Chronograph will automatically check if recep-
tion is possible. A manual attempt at picking up a signal is possible at any
time by using a transmitter call.
Should none of the attempts at picking up a signal be successful, the watch
allows you to set the time to the precise second (so-called manual start). The
watch then performs like a quartz watch.
5.1 Manual start
After an unsuccessful restart, during a restart or in the ”RC/OF” mode during
stays abroad, the manual start can be activated to set or correct time manu-
ally. If you are operating your Junghans Worldtimer Chronograph in the
manual start mode, it will automatically attempt to pick up a signal every
6 hours, and, if successful, will cancel the programmed time and replace it
with the transmitted time. Should you be in another time zone, this does
however mean, that the time displayed will be that of the transmitted time
zone. To avoid this, you can select the the ”RC/OF” mode.
5.1.1 Manual setting of time
After the minute hand and the hour
disc have reached the 12.00 o'clock
position following a restart,
press the T1 ”MODE” button repeatedly
until you reach the display date/
seconds.
Now press the T2 ”SET” button for > 3
seconds and the hour display starts to
flash.
T1
T3T2
T5

6564
You can now set the hour by using the T3 ”+” and T5 ”–” buttons respectively.
Press the T2 ”SET” button briefly and the minutes begin to flash. These can
be set using the T3 ”+” and T5 ”–” buttons respectively. To display the exact
minute after setting the seconds, you need set these plus one minute of cur-
rent time.
Press the T2 "SET" key again; the second starts flashing (max. 1 minute). Press
the T3 "+" or T5 "-" key to zero the second and to confirm the entry.
Please make sure to set the next minute so that the correct time is display-
ed after confirming.
After successfully confirming the time, the minute hand and the hour disc
will automatically move to their correct position.
5.1.2 Manual setting of date
Having successfully entered the time
date, please press the T1 ”MODE” but-
ton to reach the date / calendar week
display.
By pressing the T2 ”SET” button for > 3
seconds, the display for the year will
start to flash. You can then set the year
using the T3 ”+” and T5 ”–” buttons
respectively.
By briefly pressing the T2 ”SET” button
again, the display for the month will
start to flash. This too, is set by using
the T3 ”+” and T5 ”–” buttons respect -
ively.
After renewed pressing of the T2 ”SET” button, the display for the days will
start to flash and you can set the day by using the T3 ”+” and T5 ”–” buttons
respectively.
By pressing the T2 ”SET” button again, the display for languages will start to
flash, setting is done as before, by using the T3 ”+” and T5 ”–” buttons respect -
ively.
Pressing the T2 ”SET” button a last time will complete the process.
T1
T3T2
T5

6766
7. General information
External factors may cause damage to the seals, buttons and the watch
glass, which could lead to condensation inside the watch. We therefore
recommend having your watch inspected at regular intervals by your
Junghans specialist.
Other service work, such as changing batteries or strap repairs, should also
be carried out by your Junghans specialist. Your watch is provided with a
quality strap which has been tested several times on our premises before-
hand. Should you wish to change your strap, please use a strap of equal qua-
lity, preferably an original Junghans strap.
Use a dry or slightly moistened cloth to clean your watch and strap.
Attention: Do not use chemical detergents (e.g. benzene, paint thinners).
This could damage the surface.
6. Readiness for use
So that your Junghans Worldtimer Chronograph is always ready for use, you
should make sure it does not run low on power. The watch regularly checks
if it has sufficient battery power. If it no longer has sufficient power (e.g.
empty battery or ambient temperature too low, which impairs battery per-
formance), a battery sign appears in the LC display. If the battery does not
recover (e.g. through increased ambient temperature), you should take the
watch to your authorised specialist as soon as possible to have the battery
changed or send it to the Junghans Service Centre.
Type of battery: CR 1620
Average life of battery: approx. 3.5 years
Please ensure that the battery is disposed of properly in accordance with
legal requirements.
Battery symbol

6968
8. Technical information
Time taken to self-set with good receptions (DC ) approx. 3 minutes
Time zone adjustment range + 12 hours
– 12 hours
Switching from CET to CEST and vice versa Automatic
Synchronisation with time signal transmitters 02:00 and
03:00 hours
Operating temperature 0°C to 50°C
No licence fee.
Approved by the TZ (German Telecommunications Authority)
Subject to technical modifications
Water resistance
Marking
Was ing,
rain,
splas es S ower Bat Swimming
Diving
wit out
equipment
No marking No No No No No
3 ATM Yes No No No No
5 ATM Yes No Yes No No
10 ATM Yes Yes Yes Yes No
Declaration of Conformity
Uhrenfabrik Junghans GmbH & Co. KG herewith declares that this radio-
controlled product conforms to the principle requirements and other rele-
vant stipulations of Directive 1999/5/EC.
A corresponding declaration of conformity can be requested from
informa[email protected]
T e rating ”water resistant” only applies to brand new watc es. External fac-
tors can owever negatively affect water resistance. Please ave your watc
inspected at regular intervals.

Uhrenfabrik Junghans GmbH & Co. KG
Postfach 100 · D-78701 Schramberg
www.junghans.de · [e-mail]
42.712-0486 / 4399781 / 0809 · W615.96