iwc 3784 Manuel utilisateur
BIG INGENIEUR CHRONOGRAPH
REF. 3784
OPERATING INSTRUCTIONS
ИНСТРУКЦИЯ ПО ЭКСПЛУАТАЦИИ
REF. 3784
IWA29893/04.09/1.0
www.iwc.com
Operating instructions
English
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43 Инструкция по эксплуатации
Русский
2 | 3Welcome to the small circle of individuals who, if we are to be ab-
solutely precise, demand slightly more of a watch than absolute precision.
Appreciation of a watch is more than mere appreciation of the correct time.
It is enthusiasm for an ingenious idea. For the interplay between precision
and imagination. Between time and timelessness. Between boundaries and
infinity. Between laws to which the entire world is subject, and taste, which
cannot be dictated to anyone. That is why, since 1868, we have been devot-
ing rather more of our time to watches that must not only run with absolute
precision but which also, with every passing second, exert a fascination with
the great achievements of master craftsmanship: a fascination with new in-
ventions of a technical, material or formal nature, even if they are concealed
in minute details that are perhaps not even visible. You are now the owner of
a beautiful new example of this IWC tradition. We would like to congratulate
you on your choice and send you our best wishes for the time you will spend
with your watch, which perhaps cannot be described with any greater
accuracy than it is here.
IWC Management
The technical refinements of the Big Ingenieur Chronograph
Your IWC watch shows you the time in hours, minutes and seconds, to-
gether with the date. You can use the integrated chronograph to measure
any period in seconds, minutes and hours. Stop times can be added
together. The mechanical movement with automatic winding has 40 jewels
(synthetic rubies) and a power reserve of approximately 68 hours when
fully wound. Your Big Ingenieur Chronograph is protected by sapphire
glass of hardness grade 9 on the Mohs’ scale. Your watch is water-resistant
12 bar. To ensure that this extraordinary watch continues to perform
faultlessly in the future, it is essential to observe a few important operating
instructions.
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4 | 5Key to the Big Ingenieur Chronograph
1Hour hand
2Minute hand
3Small seconds hand
4Date display
5Chronograph
seconds hand
06Minute counter
7Hour counter
8Screw-in crown
09Start/stop button
10 Reset/flyback button
Functions of the crown
XNormal position (screwed in)
0Winding position
1Date setting
2Time setting
Normal position
This watch has a screw-in crown. Screwing the crown in to its normal
position (X) prevents inadvertent adjustment of the time or date and acts as
a double seal against ingress of water into the case. To release the crown,
unscrew it by turning it to the left, where it automatically assumes position 0,
the winding position. By depressing the crown in position X and turning it
to the right at the same time, it is screwed down firmly again and secured.
Winding position
With the crown in the winding position (0), you can also wind the automatic
movement by hand. A few revolutions of the crown are enough to start the
movement. However, it is better to wind the movement fully by turning
the crown through about 40 revolutions. This will ensure maximum accuracy
and a power reserve of about 68 hours, even if you are not wearing the
watch.
X0 1 2
6 | 7Date setting
If a month has fewer than 31 days, you will need to set the date manually
to the first day of the following month. Pull the crown out to position 1.
You can now set the date by turning the crown to the right (rapid advance).
You should not use the rapid advance function between 8 pm and 2 am
because the movement automatically advances the date during this period.
Time setting
Pull the crown out to position 2. This will stop the movement. To set the time
accurately to the second, it is best to stop the movement as the seconds
hand passes over 60. Now move the minute hand a few minutes beyond the
time to which you wish to set the watch. Then position the minute hand
by moving it gently backwards until it is directly above the correct minute
stroke. This ensures that the minute hand begins to move immediately when
you restart the movement. To start the seconds hand, push in the crown to
position 0. When setting the time, please be aware of the date change, which
always takes place at 12 midnight. If this change has already taken place at
12 noon, you must move the hands forward by 12 hours.
Setting your watch correctly
To set your watch correctly, proceed as follows:
• Release the crown by turning it to the left.
• Wind the movement until it is fully wound (about 40 revolutions of the
crown).
• Pull the crown out to position 1.
• Turn the crown to the right to advance the date display a day at a time.
Set the display to yesterday’s date.
• Pull the crown out to position 2. This will stop the movement. To set the
time accurately to the second, it is best to stop the movement as the
seconds hand passes over 60.
• Turn the hands forward until the date display changes to today’s date.
The hands will now be positioned between 12 midnight and 1 am.
• Now turn the hands forward to the correct time. If you are setting the
watch in the afternoon, you must turn the hands past 12 noon again.
• Push the crown back to position 0 to start the watch movement.
• Now push the crown to position X and secure it by simultaneously
turning it to the right.
Important: Although the watch is water-resistant in positions 0, 1 and 2, the
crown should always be screwed in again for normal use (position X).
Reading the time in the dark
Both the dial and the hour and minute hands of your watch have lumi-
nescent elements that allow you to read the time effortlessly even in total
darkness.
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