Junghaus J615.84 User manual

JUNGHANS – DIE D E U T SCHE UHR
Multifrequenz-Funk-Solarwerk
Multi-frequency radio-controlled
solar movement
J615.84
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DEUTSCH 4
ENGLISH 26
FRANÇAIS 48
ESPAÑOL 70
ITALIANO 92
NEDERLANDS 114
DANSK 136
MAGYAR 158
ČESKY 180
SLOVENSKY 202
POLSKI 224
日本語246
中文 268
한국의 290
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ENG LISH
JUNG H A N S – THE GERMAN WATCH
Ma y co gratulatio s o your purchase of a timepiece from
Ju gha s.
What bega i 1861 with the fou di g of the firm i Schramberg
quickly developed i to o e of the most fasci ati g success stories
of the Germa watchmaki g i dustry. While si ce that time the
dema ds made of watches may have cha ged, the Ju gha s
philosophy has always remai ed the same. I ovative flair a d the
co sta t pursuit of precisio right dow to the smallest detail
defi e how the compa y works a d thi ks. You ca see a d se se
this i every watch that carries the Ju gha s ame. For as diverse
as the Ju gha s ra ge may be, it pursues o e si gle goal: to
combi e traditio al craftsma ship with cutti g-edge watch
tech ology a d exciti g desig . That makes every watch with the
Ju gha s star u ique.
We hope you will e joy this very special time-keepi g i strume t.
Yours,
Uhre fabrik Ju gha s GmbH & Co. KG
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Contents Page
1. Radio technology 29
2. Environmentally friendly solar technology 32
3. Automatic time synchronisation 32
4. Functions 35
5. Selectable LC displays 37
6. Reception indicator 37
6.1 Manual time synchronisation (transmitter calls) 38
6.2 Setting the time zone 40
6.3 Quartz mode 40
7. Ready for use 42
8. Charge level indicator on watches using solar power 43
8.1 Restarting after a complete discharge of the power store 44
9. Charging times 45
10. General information 46
11. Technical information 46
12.
Impermeability 47
1. Radio technology
The most up-to-date way to keep time.
5,000 years have passed since timekeeping began with sundials. In the
interim there have been water clocks, the mechanical clocks of the 13th
century and quartz watches. Now we have the Junghans radio-control-
led watch. This is a watch that, with good reception, will never go
wrong and never need setting. The Junghans radio-controlled watch is
absolutely precise, as it is linked via radio technology to the timing con-
trol of the most accurate clock in the world, For Europe this is the
Caesium Time Base at the Physikalisch-Technischen Bundesanstalt in
Braunschweig (Germany’s Institute of Natural and Engineering
Sciences). For Japan the Caesium Time Base of the National Institute for
Information and Communications Technology (NICT), a public admini-
stration authority organisation. For 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. These clocks
are so accurate that they are expected to deviate by no more than 1
second in a million years.
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Your Junghans multi-frequency radio-controlled solar-powered watch
is able to automatically pick up time signals from the following trans-
mitters:
– DCF77 in Mainflingen (24km south of Frankfurt am Main) for
Europe,
– JJY40 on Mount Ohtakadoya (near Tokyo in the North East of the
country) for Japan
– JJY60 on Mount Hagane (in the South West of Japan) for Japan, the
East Coast of China (Shanghai), South Korea and parts of
Taiwan
– WWVB in Fort Collins, Colorado (USA) for America
This means that within range of one of these 4 transmitter stations
your Junghans multi-frequency radio-controlled solar-powered watch
will display the exact time when reception conditions are adequate.
Junghans radio-controlled wristwatches automatically synchronise
themselves every day with the DCF77, JJY40, JJY60 and WWVB time
signal transmitters. If your Junghans multi-frequency radio-controlled
solar-powered watch is unable to receive a signal due to interference
(e.g. thunder storms, electronic devices, lighting dimmer switches) it
will automatically attempt to receive a signal the following day at the
same time. The time can also be synchronised manually by calling a
transmitter e. g. from a place with better reception. The most recent
time information received is stored in an internal time memory. This
time is then kept by a high-precision 32 kHz quartz oscillator until the
next time your watch is synchronised. The radio-controlled time syn-
chronisation function of your Junghans multi-frequency radio-control-
led solar-powered watch not only ensures total time accuracy, but also
automatically switches (at night) from winter time to daylight saving
time (Europe and North America) and vice-versa when reception is
available. The Junghans multi-frequency radio-controlled solar-powe-
red watch time zone adjustment function enables you to set your
watch to the relevant local time when travelling in countries in other
time zones.
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2. Environmentally friendly solar technology
Technology that needs no batteries! Light – no matter whether sun-
light or artificial – penetrates the solar or light-transparent watch face.
This transforms the light into electrical energy, which gets saved in a
long-life power store. The power store serves as the source of electrici-
ty for your multi-frequency radio-controlled solar-powered movement
J615.84.
3. Automatic time synchronisation
The automatic time synchronisation process always takes place at
night based on the local time set on your watch:
EU – DCF 77: at c. 2 a.m. and 3 a.m.
JP – JJY40 and JJY60: c. 2 a.m.
US – WWVB: c. 2 a.m.
At the start of the synchronisation process the LC display automatical-
ly switches off. The second hand begins to move and stops at the 12:00
position. Minute and hour hands remain at the time last displayed. The
display remains switched off for the full duration of the synchronisa-
tion process (max. 9 minutes) or until this is manually aborted.
Automatic time synchronisation can be aborted by pressing any button.
For the USA’s WWVB time signal transmitter the following specific
feature applies:
After a successful transmitter call or restart, your Junghans multi-fre-
quency radio-controlled solar-powered watch always reads in Pacific
Standard Time. Due to the non-uniform changeover from summer to
winter time and the differing time zones in the individual US states,
you are given the opportunity to adjust winter time, summer time
and time zone settings (see 6.2) manually. If, due to where you are,
the time zone or summer / winter time that you have set differs from
PST, it is nevertheless retained during any subsequent transmitter
call or automatic synchronisation.
After automatic time synchronisation has been successfully perfor-
med, you can see which transmitter the signal was picked up from by
pressing button T1. The time signal always changes the date automati-
cally. In leap years the 29th of February gets automatically taken into
account. If none of the attempts at picking up a signal lead to clear syn-
chronisation, the reception indicator gets deactivated (see section 6).
Thanks to the internal time-memory, your watch will continue to run
during any days without time synchronisation with the precision of a
quartz watch. The next successful reception of the time signal leads to
synchronisation and the reception indicator on the LC display becomes
activated.
Recommendation: To ensure the best possible conditions for automa-
tic reception of the time synchronisation signal, the watch should not
be worn and, if possible, not left near to any electrical appliances, mobi-
le or cordless phones.
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It is also helpful for picking up the signal to set the appropriate time
zone for your location, as an attempt at synchronisation always begins
at c. 2 a.m. based on the local time set on the watch. If the time zone is
wrong, the watch will try to synchronise with the time signal transmit-
ter that was previously set.
For example: You travel from Europe to Japan. Your watch has CET saved
and tries to synchronise in line with CET at 10 a.m. in Japan. At that time
of day interference is disproportionately greater than when synchroni-
sing at night and the chances of optimum reception are thus less.
With the time zone set correctly the appropriate transmitter frequency
gets checked as the first priority, thus reducing the length of the trans-
mitter check and power consumption.
Important note:
When you travel into a different reception area (e.g. travelling from
Germany to Japan), automatic time and transmitter synchronisation
does not take place until the watch next picks up a time signal. If the
watch fails to pick up a time signal, perform a manual transmitter call
(see section 6.1).
4. Functions
Please note: depending on model, your Junghans multi-frequency
radio-solar watch is equipped with pushers or correctors embedded
into the case. To operate the embedded correctors please use a suit able
pointed tool.
Key lock (depending on model)
Depending on the model of your Junghans multi-frequency radio -
solar watch you have the option of locking the 2 key.
Key lock via security cover:
Slide the security cover between 1 and 2
down wards (in the direction of 2) until it clicks
into place and the red marking is visible.
Sliding the security cover back up (in the direc-
tion of 1) means that all functions of 2 are
available again.
Key lock via crown:
Rotate the crown until it clicks into place and
the red marking is visible, as in the illustration
on the left.
Rotate the crown halfway and all functions of
2 are available again.
T2
T1
T2
T1
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5. Selectable LC displays
The LC display is showing the date. By briefly pressing button T1, you
can activate the reception indicator. After 3 seconds, the display swit-
ches back to the date.
If the charge level is low, the LC display shows the seconds (flashing
alternately with [Lo]). The second hand stops at the 12 o’clock position.
6. Reception indicator
The reception indicator shows you whether synchronisation has taken
place with one of the time signal transmitters. It can display the four
following codes:
EU = DCF 77 (Europe)
JP = JJY 40 (Japan)
JP. = JJY 60 (Japan)
US = WWVB (USA)
If a time signal transmitter is shown on the LC display, the watch has
picked up the signal during the overnight automatic time synchronisa-
tion. If all that is shown on the LC display is two bars, poor reception
conditions have resulted in no automatic synchronisation taking place.
After the next successful synchronisation, the relevant time signal
transmitter will once again be indicated.
Please note that no time synchronisation occurs in quartz mode (see
chapter 6.3).
T1
T2
Analogue display: Hours, minutes, seconds
LC display: Date, reception indicator, charge level indicator
Button T1: Date, reception indicator, transmitter call
Button T2: Time-zone settings
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