Junghans J615.84 User manual

JUNGHANS – DIE D E U T SCHE UHR
Multifrequenz-Funk-Solarwerk
Multi-frequency radio-controlled
solar movement
J615.84

3
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

2726
ENG LISH
JUNGH 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

2928
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.