Manual Jaeger LeCoultre Master Grand Reveil Q163842A Watch

Manual

Introduction

We congratulate you on the purchase of your Jaeger-

LeCoultre watch and thank you for your confidence.

The Master Grand Réveil combines two fascinating

complications : a perpetual calendar and a mechanical alarm.

Given the generous proportions of this watch, it goes even

further by offering the choice between ring and vibrate mode

for the alarm function, a complete four-digit year display and

the moon phases in both northern and southern hemispheres.

We invite you to consult the operating instructions and we

wish you great pleasure with your Jaeger-LeCoultre timepiece.

Accuracy

Mechanical models with manual or automatic

winding

The precision of the mechanical models is determined by the

balance.The latter performs 21,600 or 28,800 vibrations per

hour depending on the model (see technical characteristics).

Despite all the care that the Jaeger-LeCoultre

masterwatchmakers have lavished on making and assembling

your watch, its accuracy is subject to the influence of gravity,

magnetic fields, shocks, as well as ageing of the oils. Its accuracy

is measured by its rate regularity in various positions.

The nature of you temperament and of your daily activities

may cause slight variations in timekeeping. If you were to notice

that your watch is running slow or fast, we advise you to take

it to an approved Jaeger-LeCoultre retailer, who will make any

necessary adjustments.

Quartz models

The quartz models are accurate to within 2 to 3 minutes per

year.

Water resistance

Jaeger-LeCoultre Master Control watches are water-resistant

to 5 Atm.This property is identifiable by the

symbol

engraved on the case-back. This means that your timepiece

has been tested at an immersion pressure corresponding to

50 metres.

You can use your watch while swimming or diving from the

edge, but not from a diving board. It should not be used either

for undersea diving or for sports where there are significant

risks of hard knocks, such as windsurfing and waterskiing.

Please also note that leather straps are not suitable for

aquatic activities.

It is essential to have the water resistance of your watch

regularly checked by an approved Jaeger-LeCoultre retailer,

and definitely before a period of intensive use.

The «1000 Hours Control» test

by Jaeger-LeCoultre

Jaeger-LeCoultre subjects its watches to the rigorous «1000

Hours Control» test programme. Unique in its kind, this test

consists of 1000 hours of comprehensive, stringent checks.

The «1000 Hours Control» seal or marking, affixed or

engraved on the back of your watch, certifies that it has

undergone this observation programme in our laboratories

and has successfully passed all tests. The latter include rate

regularity checks, reactions to changes in temperature and

barometric pressure, resistance to shocks and magnetic fields,

as well as water-resistance tests at pressures of 3 atmospheres.

Your watch is therefore capable of withstanding the trials of

everyday life when you wear it on your wrist.

The criteria of the «1000 Hours Control» programme go far

beyond the official timekeeping test standards, which concern

only part of the movement. Jaeger-LeCoultre tests both the

movement and the fully cased-up watch.

Master Grand réveil

1

3

6

8

7

9

16

10

13

12

14

2

4

5

15

11

1 Seconds hand

2 Month

3 Crown A

4 Last two digits of the year

5 Minute hand

6 Day

7 Alarm time

8 Crown B

9 Moon phases in both hemispheres

10 24-hour indication with the red numerals

indicating the red zone

11 Corrector C

12 Date

13 Hour hand

14 First two digits of the year

15 Alarm control

16 Alarm indication : striking mechanism/vibrate

mode

Master Grand réveil - English 1/6

Rating

More about this manual

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