Junghans J645.83 Bedienungsanleitung
Quarzwerk mit Chronoscope
Quartz movement with Chronoscope
J645.83
JUNGHANS – DIE DEUTSCHE UHR
12 13
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
14 15
Contents Page
1. Quartz chronoscope J645.83 15
1.1 Operating elements and functionsn 15
1.2 Operating the chronoscopes 16
2. Technical data 17
3. General information 18
4. Water resistance 19
Setting the time
Pull the crown to position C. This stops the movement. Any stopwatch
action underway will not be affected by this. To set the watch accu-
rately to the second it helps to stop the movement when the second
hand is over the 60. You can now position the minute hand precisely
on the minute marker and set the required time. Return the crown to
position A to start the second hand.
1. Quartz chronoscope J645.83
1.1 Operating elements and functions
25
10
2
3
4
1
9
6
5
7
8
ABC
1 1/5 second counter
2 Hour hand
3 Stop minute
4 Second hand
5 Minute hand
6 Start-stop pusher
7 Crown
8 24h display
9 Reset pusher
10 Date display
16 17
Setting the date
Pull the crown to position B. Set the date by rotating the crown to the
right. Date alteration should not be performed between 8 PM and
3 AM, as in this period the date is switched automatically by the
movement and damage may be caused to the switching mechanism.
If the month has less than 31 days, the date must be forwarded to the
1st of the following month by hand.
1.2 Operating the chronoscope
Starting time measurement (max. stop time 60 minutes)
Begin the chronoscope function by pressing the start-stop pusher (6).
Stopping time measurement
Stop the chronoscope function by pressing the start-stop pusher (6)
again.
Resetting
Press the reset pusher (9). The stop minute and the 1/5 second counter
return to the zero position.
Addition time measurement
Stop times may be added by pressing the start-stop pusher (9) again
after the initial measurement, in place of the reset pusher (6). The
chronoscope hands will then recommence from the stopped position.
Stop the chronoscope function by pressing the start-stop pusher (6)
again. To return the chronoscope hands to the zero position, press the
reset pusher (9).
2. Technical information
Calibre J645.83
Quartz chronoscope with 1/5 stop second and 24h display
Stop time 60 minutes
Battery SR936SW
Operating temperature 0° to + 50° C
Subject to technical alterations.
18 19
Declaration of conformity
Uhrenfabrik Junghans GmbH & Co. KG hereby declares that this wrist-
watch conforms to the fundamental requirements and other relevant
specifications of Directive 1999/5/EC. A corresponding declaration of
3. 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 un-
dergone 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.
4. 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.
42.712-0684 / 1222 J645
Uhrenfabrik Junghans GmbH & Co. KG
Geißhaldenstr. 49 · D-78713 Schramberg
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