Ingenieur Chronograph Silberpfeil 3785 - Watch IWC - Free user manual and instructions

Brand	IWC
Model	Ingenieur Chronograph Silberpfeil 3785
Product Type	Automatic winding chronograph wristwatch
Movement	Automatic mechanical with engraved oscillating weight
Power reserve	Approximately 68 hours after full winding
Water resistance	12 bar
Crystal	Sapphire, hardness 9 on the Mohs scale
Functions	Hours, minutes, seconds, date, chronograph (seconds, minutes, hours), tachymeter, flyback, cumulative timing
Crown	Screwed-in, positions: normal (X), winding (0), date setting (1), time setting (2)
Bracelet	Metal with fine adjustment (up to 6 mm) and removable links
Luminosity	Luminescent dial and hands for reading in the dark
Power supply	Automatic winding by wrist movement or manual winding via crown
Maintenance	Overhaul recommended every 5 years; annual water resistance check
Cleaning	Avoid contact with water, greases, solvents, and cosmetics; clean metal bracelet with a soft cloth
Safety	Screwed-in crown to prevent infiltration and unintentional adjustments
Spare parts and repairability	Contact an authorized IWC dealer or IWC after-sales service in Schaffhausen
General information	Made in Switzerland; subject to technical modifications (December 2012)

Frequently Asked Questions - Ingenieur Chronograph Silberpfeil 3785 IWC

How do I set the time on my IWC Ingenieur Chronograph Silberpfeil 3785?

Unlock the crown by turning it counterclockwise. Pull it to position 2. The movement stops. Set the time by turning the crown. For second precision, stop the movement when the second hand is at 60. Position the minute hand exactly on the mark. Return the crown to position 0 to restart. Screw the crown back in (position X).

How do I set the date on my watch?

Unlock the crown and pull it to position 1. Turn it clockwise to advance the date. Do not set the date between 8 PM and 2 AM, as the movement automatically advances the date during this period. After setting, push the crown back to position X.

How do I use the chronograph?

Press the start-stop pusher (at 2 o'clock) to start. The central second hand times seconds. Press again to stop. To reset to zero, press the reset and flyback pusher (at 4 o'clock). The minute and hour counters (at 12 o'clock) add up automatically.

What is the flyback function and how do I use it?

The flyback function allows you to restart the chronograph immediately without stopping it. While the chronograph is running, press the reset pusher (at 4 o'clock). The hands return to zero and timing of a new interval starts as soon as you release the pusher.

How do I measure speed with the tachymeter?

Travel a distance of one kilometer. Start the chronograph at the start, stop it at the finish. The second hand indicates the average speed in km/h on the tachymeter scale. The elapsed time must not exceed 60 seconds. Example: 40 seconds = 90 km/h.

How do I adjust the length of the metal bracelet?

Use the fine adjustment of the clasp: press the IWC logo pusher down and pull to lengthen (up to 6 mm). To shorten, compress the bracelet in the clasp area without pressing the pusher. To remove links, follow the bracelet separation steps described in the manual.

Is my watch water-resistant?

Yes, water resistance is 12 bar. However, the crown must be screwed in (position X) to ensure water resistance. Avoid operating the crown underwater. For detailed recommendations, visit iwc.com/water-resistance or an authorized dealer.

How do I manually wind the watch?

Unlock the crown by turning it counterclockwise (position 0). Turn the crown about 20 times clockwise to fully wind the movement. Then screw the crown back in to position X.

When should I have my watch serviced?

A complete overhaul is recommended every 5 years. A water resistance check should be performed at least once a year. After any opening or manipulation by an unauthorized person, the warranty may be voided. Contact an authorized IWC dealer or IWC after-sales service.

Can I use my watch with a leather strap in water?

No, avoid any contact of the leather strap with water, greases, solvents, and cosmetics to preserve its color and durability. If you use the watch in water, opt for a metal or rubber strap.

USER MANUAL Ingenieur Chronograph Silberpfeil 3785 IWC

MANUAL DE INSTRUÇÕES

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BEDIENUNGSANLEITUNG

Deutsch

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OPERATING INSTRUCTIONS

English

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MODE D'EMPLOI

Français

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ISTRUZIONI D'USO

Italiano

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MANUAL DE INSTRUÇÕES

Português

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—Welcome to the small circle of individuals who, if we are to be

absolutely 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 devoting 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 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

THE TECHNICAL REFINEMENTS OF THE INGENIEUR CHRONOGRAPH

Your IWC watch shows you the time in hours, minutes and seconds, together with the date. You can use the integrated 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. The engraved rotor winds the watch in both directions of rotation via the IWC double-pawl winding system. Your Ingenieur Chronograph is protected by a sapphire glass of hardness grade 9 on 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.

1 2 3 4 5 6 7 8 9 IWC INOCINEUR SCHAFFENZEN 10

1 Hour hand
2 Minute hand
3 Small seconds hand
4 Date display
5 Chronograph seconds hand

Minute counter 6

Hour counter 7

Screw-in crown 8

Start/stop button 9

Reset/flyback button 10

FUNCTIONS OF THE CROWN

INCFNEUR IWC CHAPMAUEN 0X 12

x - Normal position (screwed in)

o - Winding position

1 - Date setting

2 - Time setting

NORMAL POSITION

This watch has a screw-in crown. Screwing the crown in to its normal position (X) prevents the inadvertent adjustment of the time or date and also acts as a double seal to prevent water from seeping 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 watch by turning the crown through approximately 20 revolutions as this will ensure maximum accuracy. The crown must always be in position X when you are wearing your watch.

DATE 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. Release the screw-in crown and pull it out to position 1. You can now set the date by turning the crown to the right (direct advance). You should not use the rapid-advance 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. 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 60. You can now set the time by turning the crown and positioning the minute hand exactly above the minute stroke. 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 forwards by 12 hours.

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).

SETTING YOUR WATCH CORRECTLY

To set your watch correctly, proceed as follows:

• Release the crown by turning it to the left.
• Wind the movement (approximately 20 revolutions of the crown).
• Pull out the crown to position 1.
• Turn the crown to the right to advance the date display in steps. Set the display to yesterday's date.
• Pull out the crown 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 60.
• Turn the hands forwards until the date display changes to today's date. The hands will now be positioned between 12 midnight and 1 a.m.
• Now turn the hands forwards 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 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 luminescent elements that allow you to read the time effortlessly, even in total darkness.

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.

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. 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.

CALCULATING SPEED

When you complete a calibrated distance of one kilometre, you can read 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. You can now read the average speed in kilometers per hour from the position of the chronograph seconds hand on the tachymeter scale. 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.

ADJUSTING AND SETTING THE METAL BRACELET

The metal bracelet has been designed so that you can comfortably adjust it to the size of your wrist. You can make this adjustment yourself by removing or adding individual bracelet links. Furthermore, for your personal convenience, this bracelet has an innovative fine-adjustment system, permitting you to extend or reduce the length of the bracelet quite simply by up to 6 millimetres, depending on your needs. To increase the length of bracelet, press the button with the IWC logo and pull the bracelet slightly apart. To shorten it, push it together in the area of the clasp; here the button does not need to be pressed.

TAKING THE BRACELET APART

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Open the folding clasp by pressing the buttons on the side. Lay the bracelet with the outside on a firm base. To avoid scratching the bracelet and base, place a cloth underneath the bracelet. Using the special tool provided, you can now push down the securing pin at the desired point of separation (1) and, at the same time, slide the hinged link with the help of the second tool about 3 millimetres sideways (2).

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Pull the protruding hinged link out of the bracelet (3). The bracelet is now separated.

DETERMINING HOW MANY LINKS TO REMOVE

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Place the watch with the folding clasp closed around your wrist and use the overlap to estimate the number of surplus bracelet links that you can now remove as described below. If you need to take out several links, we recommend removing the same number of links from each side of the bracelet, if possible, to ensure that the clasp can be worn more or less in the centre of the wrist.

Please observe the following recommendation: Generally the size of your wrist will increase during the course of the day, depending on temperature and physical exertion. Before you remove individual bracelet links, depending on the time of day you should have the fine-adjustment system on the clasp closed (in the morning) or open (in the evening).

REMOVING INDIVIDUAL LINKS AND ATTACHING THE BRACELET

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Repeat steps 1 to 3 at the distance from the first point of separation you have just determined. Remove the unnecessary links and reassemble the shortened bracelet. Slide the hinged link into the bracelet sideways (1).

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Using the special tool provided, you can now push down the fixing bolt (2) and, at the same time, slide the hinged link back into the bracelet until it lies flush (3).

The fixing bolt must be aligned with the upper edge of the securing link. It is important that you check that the hinged link is sitting correctly.

Keep the surplus links and separating tool in a safe place for use in any adjustment at another time.

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 authorized IWC Official Agent will also be pleased to provide 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.

NOTE

Leather is a natural and permeable material. Make sure, therefore, that the high-quality leather strap does not come into contact with water, oily substances, solvents, cleaning agents or cosmetic products. This way you can prevent discoloration and premature ageing of the material.

SERVICING YOUR 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 authorized IWC Official Agent or send your watch directly to the IWC Customer Service Department in Schaffhausen.

Effective from December 2012.

Technical specifications subject to change.

Poussoir start-stop 9

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Remova agora o pino articulado que sobressai da bracelet (3). Agora a bracelet está separada.

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Branch of Richemont International SA

Baumgartenstrasse 15

CH-8201 Schaffhausen

Switzerland

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© Copyright 2012

IWC Schaffhausen, Branch of Richemont International SA

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