Junghans J830 Manuale utente
Automatikwerk
Self-winding movement
J830
1972 Automatic FIS Edition
14 15
ENGLISH Junghans. Live your style.
Congratulations on becoming the owner of an original Junghans!
Junghans watches are and always have been something special.
They have made watchmaking and design history. And we are
still doing so today. For the story of success that began in 1861 in
Schramberg in the Black Forest continues with each new model.
Present in every watch are the elements that make Junghans
special: style, passion, innovative spirit and precision right down
to the tiniest detail. Put another way: when traditional crafts-
manship, leading edge watch technology and classy design come
together, then it is a genuine Junghans. A watch for all those
who live their own style – and on that we can not do other than
congratulate you!
Your
Uhrenfabrik Junghans GmbH & Co. KG
16 17
Contents Page
Instructions for use 17
General information 23
Operating instructions Calibre J830
Important note:
Do not make any changes to the date between 08:00 p.m. and
02:00a.m., as the date is automatically advanced by the movement
during this period and you could damage the date advance mechanism.
Your watch features two screwed crowns. These crowns must be
released before they can be operated.
Winding up the watch
The automatic movement can also be wound by hand using the crown
(5) exhibiting the Junghans star. Unscrew the crown by turning to the
left. A minimum of 2 to 3 rotations of the crown is required in order
to actuate the movement. The watch is fully wound after approx.
45rotations of the crown. Maximum accuracy and maximum power
reserve are guaranteed when the watch is fully wound (even if the
watch is put down). Then press the crown into Position A again and
screw-in. Once set, the watch should be worn on the wrist to ensure
that it remains operational at all times via automatic winding (through
motion of the rotor).
18 19
Adjusting the time
Release the crown (5) and pull it into position C. This will stop the
watch. Setting of the watch to the precise second can be achieved by
stopping the movement as the second hand passes over the ‘60’ mark.
The minute hand can now be positioned precisely to the respective
minute marker in order to set the desired time. Press the crown into
Position A again and tighten.
Operating elements and functions
Calibre J830
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AUTOMATIC
25
M
A
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5
1
7
6
3
4
A
A
B
B
C
2
1 Hour hand
3 Minute hand
3 Crown: 2nd time zone
4 Date
5 Crown: winding and
time adjustment
6 Second hand
7 Display of 2nd time
zone
Setting the date
Release the crown (5) and pull it into Position B. Set the date by turning
the crown to the right. Then press the crown into Position A again
and tighten. It should be noted that resetting the date is not advised
between 8pm and 2am as the date is switched automatically by the
movement during this period, whereby the switching mechanism
could otherwise sustain damage. If the month has less than 31 days,
set the date manually to the 1st day of the next month.
Setting the 2nd time zone
Release the crown (3) exhibiting the snowflake symbol and pull it into
Position B. Turning the crown to the right will adjust the time forwards,
or alternatively backwards by turning to the left. Press the crown into
Position A again and tighten.
20 21
Technical information
Calibre J830
• Self-winding movement with date and 2nd time zone
• Bi-directional automatic winding mechanism
• 28,800 semi-vibrations per hour
• 28 jewels
• Eccentric fine adjustment
• Power reserve > 48 hours
• 3-point shock absorber, following the sample of the historical
Junghans Trilastic
• Balance wheel: Gold-plated nickel
Changing the strap
The tool included specifically for changing the strap allows you to
replace straps on your watch in just a few short steps. Always place the
watch on a soft base to perform this procedure.
Fit the tool onto the spring bar
(Fig. 1). Push the collar of the
spring bar towards the centre of
the case to release the spring bar.
Fig. 1
To fit the new strap, push one side of the spring bar into the hole
(Fig. 2). Push back the spring bar collar on the other side and insert into
the hole provided (Fig. 3).
Fig. 2 Fig. 3
22 23
General information
External inuences can aect the watch’s waterproof qualities, which
may let in moisture. We therefore recommend that you have your
watch regularly inspected by your Junghans specialist. Other servicing
tasks or wrist strap repairs should also be done by your Junghans
specialist. Your watch is tted with a quality wrist strap that has
undergone multiple inspections in our factory. If, however, you decide
to change the strap, please t a new one of the same quality, preferably
an original Junghans wrist strap. Watch and wrist strap can be cleaned
with a dry or slightly moistened cloth.
NB: Do not use chemical cleaners (e.g. benzine or paint thinners). These
may harm the surface.
Water resistance
Marking Instructions for use
Washing,
rain,
splashes Shower Bath Swimming
Diving
without
scuba tanks
(snorkelling)
No mark No No No No No
3 BAR Yes No No No No
5 BAR Yes No Yes No No
10 BAR Yes Yes Yes Yes No
20 BAR Yes Yes Yes Yes Yes
30 BAR Yes Yes Yes Yes Yes
The water resistance as prescribed by DIN is a design engineering
characteristic which is susceptible to external inuences such as shock,
uctuations in temperature, UV light and direct contact with cosmetics
and cleaning products (greases and acids). The “3–30 BAR” condition is
thus only applicable for brand new watches. We recommend having the
watch inspected at regular intervals.
42.712-0644 / 1220 J830
Uhrenfabrik Junghans GmbH & Co. KG
Geißhaldenstr. 49 · D-78713 Schramberg
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