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

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— 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

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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

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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’

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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.

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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

Reset/flyback 8

push-button

Tourbillon

Crown 10

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