iwc IW3931 User manual

www.iwc.com
OPERATING INSTRUCTIONS
使用说明
使用說明
取扱説明書
PETUNJUK PENGGUNAAN
ИНСТРУКЦИЯ ПО ЭКСПЛУАТАЦИИ
КЕРІВНИЦТВО З ВИКОРИСТАННЯ
REF. 3931
DA VINCI
TOURBILLON RÉTROGRADE
CHRONOGRAPH
REFERENCE 3931
IWE07134/01.17/0.1

— 3 —
— 5 —
OPERATING INSTRUCTIONS
English
— 25 —
使用说明
简体中文
— 41 —
使用說明
繁體中文
— 53 —
取扱説明書
日本語
— 67 —
PETUNJUK PENGGUNAAN
Bahasa Indonesia
— 81 —
ИНСТРУКЦИЯ ПО ЭКСПЛУАТАЦИИ
Русский
— 95 —
КЕРІВНИЦТВО З ВИКОРИСТАННЯ
Українська
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH

— 5 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
Welcome to the small
circle of individuals who, if we are to
be absolutely precise, demand slightly
more of a watch than absolute preci-
sion. Appreciation of a watch is more
than mere appreciation of the correct
time. It is enthusiasm for an ingenious
idea. For the interplay between preci-
sion and imagination. Between time
and timelessness. Between bounda-
ries 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
devoting rather more of our time to
watches that must not only run with
absolute precision but which also, with

— 6 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
every passing second, exert a fascin-
ation with the great achievements of
master craftsmanship: a fascination
with new inventions 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

— 7 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
THE TECHNICAL
REFINEMENTS OF THE
DA VINCI TOURBILLON
RÉTROGRADE
CHRONOGRAPH
Your IWC watch shows you the time
in hours and minutes and the retro -
grade date. You can use the integrated
flyback chronograph to measure any
period of time in seconds, minutes
and hours. Stop times can be added
together. The mechanical movement
with automatic winding has a power
reserve of approximately 68 hours
when fully wound. Your Da Vinci
Tourbillon Rétrograde Chronograph is
protected by an arched-edge sapphire
glass of hardness grade 9 on Mohs’

— 8 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
scale. Your watch is shockproof and
water-resistant 3 bar. The engraved
rotor made of 18-carat red gold winds
the watch in both directions of rotation
via IWC’s double-pawl winding. Your
watch is equipped with a flying minute
tourbillon, a unique micro-mechanism
that minimizes the effect of gravity
on the accuracy. The tourbillon, an
invention made in the aftermath of the
French Revolution, has always been
regarded as the ultimate challenge
in the quest for absolute mechanical
watchmaking precision. More specific-
ally, the purpose of the mechanism is
to counterbalance the one-sided pull
of the earth’s gravity on the balance.

— 9 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
This is because the residual gravita-
tional error of the balance influences
the accuracy, depending on the pos-
ition of the watch. Fortunately, there
is a way to overcome this problem
caused by one of the basic laws of
physics: the balance, the pallets and
the escape wheel are mounted in
a minute cage that rotates around
itself once every minute. In this way,
the effect of the gravitational error is
practically eliminated. To ensure that
this extraordinary watch continues to
perform faultlessly in the future, it is
essential to observe a few important
operating instructions.

— 10 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
1Hour hand
2Minute hand
3Chronograph
seconds hand
4Date display
5Minute counter
Hour counter 6
Start/stop push-button 7
Reset/flyback 8
push-button
Tourbillon 9
Crown 10
S
W
I
S
S
M
A
D
E
10
2
9
6
3
8
1
4
5
7

— 11 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
FUNCTIONS OF
THECROWN
0 — Normal position
1 — Date setting
2 — Time setting
NORMAL POSITION
With the crown in the normal 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 recom-
0 1 2

— 12 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
mended to wind the watch by turning
the crown through approximately
20 revolutions as this will ensure
maximum precision. The crown must
always be in position 0 when you are
wearing your watch.
DATE SETTING
The date indicator is retrograde,
meaning that at the end of the 31st
day, the hand jumps back to the first
day. 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 out the crown to position 1. You
can now set the date by turning the
crown to the right (direct advance). You

— 13 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
should not use the rapid-adjustment
function between 8 p.m. and 2 a.m.
because the movement automatically
advances the date during this period.
TIME SETTING
Pull out the crown to position 2. With
the crown in this position, you can set
the time by turning the crown. You
must push in the crown to position
0 before wearing the watch. 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.

— 14 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
READING THE
CHRONOGRAPH
Chronograph seconds hand: The
scale for the central chronograph
seconds hand runs around the edge
of the dial.
Minute and hour counters: The
subdial at 12 o’clock has two hands,
which run continuously and show
the elapsed time on a 12-hour and a
60-minute scale. The hour and minute
counters can be read like a standard
analogue time display. In other words,
one revolution of the minute counter is
equal to 60 minutes, and one revolution
of the hour counter is equal to 12 hours.

— 15 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
USING THE
CHRONOGRAPH
Start: To start the chronograph, press
the start/stop push-button.
Flyback: You can start recording a
new time immediately, even when
the chronograph is running. Simply
depress the reset/flyback push-button
fully, as far as it will go. All three
chronograph hands are reset to zero,
and a new measurement is started as
soon as the push-button is released.
Stop: To stop the running chrono-
graph, press the start/stop push-
button.

— 16 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
Reset: Depress the reset/flyback
push-button fully, as far as it will
go. This will reset all the chronograph
hands to zero.
Aggregate timing: You can add stop
times together by pressing the start/
stop push-button again after the first
measurement instead of the reset/
flyback push-button.

— 17 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
INFORMATION ABOUT
MAGNETIC FIELDS
As a result of the ever greater preva-
lence in recent years of very strong
magnets made from rare-earth alloys
(e.g. neodymium-iron-boron) – these are
found in objects such as loudspeakers,
jewellery and fasteners on mobile-phone
cases and handbags – mechanical
watches are increasingly likely to come
into contact with such magnets and
become magnetized. This can lead
to the watch rate being permanently
affected, a problem that can only be
resolved by a process of demagnet-
ization carried out by a specialist. We
recommend that you keep your watch
away from such magnets.

— 18 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
Watches with a soft-iron inner case
provide a higher level of protection
against magnetic fields and far exceed
the requirements of DIN standard 8309.
Nevertheless, it is still possible for the
watch movement to become magnet-
ized in close proximity to very strong
magnets. We therefore recommend
that watches with a soft-iron inner case
also be kept away from direct contact
with strong magnets.
Should there be a sudden change in
the precision of your timepiece, please
contact an authorized IWC Official
Agent to have your watch checked for
magnetism.

— 19 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
WATER-RESISTANCE
The water-resistance of IWC watches
is stated in bar and not in metres.
Metres, which are often used else-
where in the watch industry to indicate
water-resistance, cannot be equated
with dive depth because of the test
procedures that are frequently used.
Water-resistance shown in metres
provides no indication as to actual
use of the watch in the presence of
moisture and wetness, and in or under
water. Recommendations for use in
connection with the water-resistance
of your watch can be found on the
Internet at www.iwc.com/water-resist-
ance. Your authorized IWC Official
Agent will also be pleased to provide

— 20 —
DA VINCI TOURBILLON RÉTROGRADE CHRONOGRAPH
you with information.
To ensure that your watch continues
to function perfectly, you should have
it checked by an IWC service centre at
least once a year. Your watch should
also be tested after exposure to
unusually harsh conditions. If the tests
are not carried out as stipulated, or if
the watch is opened by unauthorized
persons, IWC will accept no warranty
or liability claims.
Recommendation: Your authorized
IWC Official Agent must carry out a
water-resistance test whenever your
IWC watch is opened and serviced.