manuals.online logo
Brands
  1. Home
  2. •
  3. Brands
  4. •
  5. iwc
  6. •
  7. Watch
  8. •
  9. iwc 3784 User manual

iwc 3784 User manual

BIG INGENIEUR CHRONOGRAPH
REF. 3784
OPERATING INSTRUCTIONS
ИНСТРУКЦИЯ ПО ЭКСПЛУАТАЦИИ
REF. 3784
IWA29893/04.09/1.0
www.iwc.com
Operating instructions
English
03
13
23
33
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.
12
04
9
5
310
8
76
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.
8 | 9Calculating speed
When you complete a calibrated distance of one kilometre, you can read
off your average speed directly on the tachymeter scale. Activate the
chronograph as you pass your starting point and stop it at the end of the
measured distance. The elapsed time is shown on the tachymeter scale as
speed in kilometres per hour. Please note that any period over one minute
in length is invalid.
Example: It takes 40 seconds to drive one kilometre, so your average
speed is exactly 90 kilometres per hour.
Reading the chronograph
Seconds counter: 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.
Using the chronograph
Start: To start the chronograph, press the start/stop button.
Flyback: You can start recording a new time immediately, even when the
chronograph is running. With the chronograph running, simply depress the
reset/flyback 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 button
is released.
Stop: To stop the running chronograph, press the start/stop button.
Reset: Depress the reset/flyback button fully as far as it will go. This will
reset all the chronograph hands to zero.
Aggregate time recording: You can add stop times together by pressing
the start/stop button again after the first measurement instead of the reset/
flyback button.
Water-resistance
The water-resistance of IWC watches is stated in bar and not in metres.
Metres, which are often used elsewhere 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-resistance. Your authorised IWC Official
Agent will also be pleased to provide you with information.
10 | 11To 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 unauthorised
persons, IWC will accept no warranty or liability claims.
Recommendation: Your authorised IWC Official Agent must carry out
a water-resistance test whenever your IWC watch is opened and serviced.
Servicing your Big Ingenieur Chronograph
Although the parts in this watch are all manufactured from top-quality
materials, a number of components are subject to natural wear and tear. It
is particularly important to ensure that the points at which wear occurs are
always well-lubricated and that oil contaminated by metal abrasion is
regularly removed. For this reason, we recommend that you have your
watch serviced approximately every five years. Please contact an
authorised IWC Official Agent or send your watch directly to the IWC
Customer Service Department in Schaffhausen.
Effective from January 2009.
Technical specifications subject to change.
12 | 13
14 | 15
12
04
9
5
310
8
76
X0 1 2
16 | 17

Other iwc Watch manuals

iwc PILOT'S WATCH CHRONOGRAPH SPITFIRE User manual

iwc

iwc PILOT'S WATCH CHRONOGRAPH SPITFIRE User manual

iwc IW3777 User manual

iwc

iwc IW3777 User manual

iwc Portugieser 3712 User manual

iwc

iwc Portugieser 3712 User manual

iwc IW5007 User manual

iwc

iwc IW5007 User manual

iwc 3254 User manual

iwc

iwc 3254 User manual

iwc 5023 User manual

iwc

iwc 5023 User manual

iwc PORTOFINO AUTOMATIC 34 User manual

iwc

iwc PORTOFINO AUTOMATIC 34 User manual

iwc SPITFIRE MARK XVI User manual

iwc

iwc SPITFIRE MARK XVI User manual

iwc DA VINCI AUTOMATIC User manual

iwc

iwc DA VINCI AUTOMATIC User manual

iwc 3723 User manual

iwc

iwc 3723 User manual

iwc PORTOFINO HAND-WOUND TOURBILLON RETROGRADE User manual

iwc

iwc PORTOFINO HAND-WOUND TOURBILLON RETROGRADE User manual

iwc INGENIEUR PERPETUAL CALENDAR DIGITAL... User manual

iwc

iwc INGENIEUR PERPETUAL CALENDAR DIGITAL... User manual

iwc PORTUGUESE MINUTE REPEATER User manual

iwc

iwc PORTUGUESE MINUTE REPEATER User manual

iwc PORTUGIESER PERPETUAL CALENDAR TOURBILLON User manual

iwc

iwc PORTUGIESER PERPETUAL CALENDAR TOURBILLON User manual

iwc IW3768 User manual

iwc

iwc IW3768 User manual

iwc IW3565 User manual

iwc

iwc IW3565 User manual

iwc 3762 User manual

iwc

iwc 3762 User manual

iwc 3818 User manual

iwc

iwc 3818 User manual

iwc FLIEGERUHR User manual

iwc

iwc FLIEGERUHR User manual

iwc ingenieur dual time titanum reference 3264 User manual

iwc

iwc ingenieur dual time titanum reference 3264 User manual

iwc LEWIS HAMILTON 3796 User manual

iwc

iwc LEWIS HAMILTON 3796 User manual

iwc 5038 User manual

iwc

iwc 5038 User manual

iwc PILOT'S WATCH CHRONOGRAPH User manual

iwc

iwc PILOT'S WATCH CHRONOGRAPH User manual

iwc TRIBUTE TO PALLWEBER User manual

iwc

iwc TRIBUTE TO PALLWEBER User manual

Popular Watch manuals by other brands

GOLDEN STATE INTERNATIONAL 40-733 instruction manual

GOLDEN STATE INTERNATIONAL

GOLDEN STATE INTERNATIONAL 40-733 instruction manual

Epson YM82A Watch Movement Specification and Drawing

Epson

Epson YM82A Watch Movement Specification and Drawing

Pulsar V071 manual

Pulsar

Pulsar V071 manual

Topcom Speedopulse 1000W user guide

Topcom

Topcom Speedopulse 1000W user guide

Polar Electro Equine M400 user manual

Polar Electro

Polar Electro Equine M400 user manual

Raymond Weil NABUCCO CUORE CALDO Instructions for use

Raymond Weil

Raymond Weil NABUCCO CUORE CALDO Instructions for use

Sami X.TECH wearable WS-2367 manual

Sami

Sami X.TECH wearable WS-2367 manual

Huawei Watch Buds quick start guide

Huawei

Huawei Watch Buds quick start guide

LG G quick start guide

LG

LG G quick start guide

Oakley D2 instruction manual

Oakley

Oakley D2 instruction manual

Sunsky S1 Plus user manual

Sunsky

Sunsky S1 Plus user manual

Oakley Jury II instruction manual

Oakley

Oakley Jury II instruction manual

MyKronoz ZeSport quick start guide

MyKronoz

MyKronoz ZeSport quick start guide

Garmin Swim Quick start manual

Garmin

Garmin Swim Quick start manual

STARLANE ATHON GPS Installation and operation manual

STARLANE

STARLANE ATHON GPS Installation and operation manual

LORUS VD67 instruction manual

LORUS

LORUS VD67 instruction manual

ZEITKOENIG Theodosius Series manual

ZEITKOENIG

ZEITKOENIG Theodosius Series manual

CP 29480 instruction manual

CP

CP 29480 instruction manual

manuals.online logo
manuals.online logoBrands
  • About & Mission
  • Contact us
  • Privacy Policy
  • Terms and Conditions

Copyright 2025 Manuals.Online. All Rights Reserved.