Jaeger-leCoultre Master Compressor Chronograph User Manual

Introduction
We congratulate you on the purchase of your Jaeger-
LeCoultre watch and thank you for your confidence.
Your Master Compressor Chronograph watch asserts itself in
the sporting world thanks to the first automatic chronograph
movement produced by Jaeger-LeCoultre. The patented
compression key system has been adapted for integration
into the chronograph pushpieces. The inner bezel ring displays
the tachometric scale which enables measurement of average
travelling speeds.
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 master-
watchmakers 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. This
accuracy is measured by its rate regularity in various positions.
The nature of your 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.
Jaeger-LeCoultre quartz watches contain a battery
and electronic components. When performing
maintenance, your official Jaeger-LeCoultre Service
Centre or your authorised Jaeger-LeCoultre retailer
will take charge of their recovery and disposal in accordance
with the standards in force.
Master CoMpressor Chronograph
1 Chronograph seconds hand
2 Minute hand
3 Crown A
4 Minute counter
5 Compression key
6 Small seconds hand
7 Pushpiece with compression wing-nut
8 Date
9 Tachometric scale
10 Hour counter
11 Hour hand
7
1
8
2
3
4
5
6
7
9
10
11
Master CoMpressor Chronograph
- English 1/6

Jaeger-leCoultre Master Compressor Chronograph Specifications

General

Model	Master Compressor Chronograph
Movement	Automatic
Water Resistance	100 meters
Chronograph Function	Yes
Power Reserve	65 hours
Crystal	Sapphire
Case Material	Stainless Steel
Dial Color	Black
Strap Material	Leather
Functions	Hours, Minutes, Seconds, Date, Chronograph

Summary

Introduction to Jaeger-LeCoultre Master Compressor Chronograph

Master Compressor Chronograph Overview

Overview of the Master Compressor Chronograph, highlighting its automatic movement and patented compression key system.

Watch Accuracy Specifications

Mechanical Model Accuracy Factors

Explains factors influencing mechanical watch accuracy, including balance, gravity, and magnetic fields.

Quartz Model Accuracy

States the accuracy of Jaeger-LeCoultre quartz models is 2 to 3 minutes per year.

Water Resistance Guidelines

Water Resistance Rating and Usage

Details the watch's 10 bar/atm water resistance and guidelines for swimming and diving.

Maintaining Water Resistance

Recommends regular water resistance checks by an authorised retailer every two years.

The 1000 Hours Control Test

1000 Hours Control Test Explained

Explains the rigorous 1000-hour test programme certifying the watch's durability and performance.

Compression Key System

Compression Key Positions

Details the function of compression keys, indicating 'open' and 'closed' positions via arrow symbols.

Operating Compression Keys

Provides instructions on transitioning compression keys between 'closed' and 'open' positions for operation.

Clasp Adjustment Guide

Fine Adjustment System

Explains the clasp's length-change system, allowing bracelet adjustment by 4 mm on each side.

Technical Watch Characteristics

Movement and Power Reserve Details

Lists technical details including automatic movement Calibre 751, 28,800 vibrations/hour, and 65-hour power reserve.

Basic Watch Operation

How to Start the Watch

Instructions on how to start the watch by turning the crown and compression key to the 'open' position.

Setting the Correct Time

Guides on setting the time, including using the 'stop seconds' function for precision.

Date Adjustment Procedure

Fast Date Correction Method

Details the process for fast date correction using Crown A, with a note on restricted time periods.

Chronograph Functions Explained

Chronograph Components Overview

Describes the chronograph's central seconds hand, minute, and hour counters, and pushpiece functions.

Using Chronograph for Timing

Explains how to start, stop, and reset the chronograph for timing operations and cumulative measurements.

Tachometer Speed Measurement

How to Use the Tachometer Scale

Details how to use the tachometer scale to measure speed in km/h using the chronograph function.

International Guarantee Terms

Guarantee Coverage and Conditions

Outlines conditions for the International Guarantee, excluding damage from misuse or unauthorized repairs.

Jaeger-LeCoultre Customer Service

Watch Maintenance and Servicing Advice

Advises on regular maintenance for mechanical watches and where to send them for servicing or repairs.

Limited Warranty for USA and Canada

Warranty Terms and Limitations

Explains the terms of the Limited Warranty for USA/Canada, including exclusions and consumer rights.

Customer Service in Specific Regions

Servicing and Repair Procedures

Provides instructions for servicing and repairs, including contact details for Manufacture Jaeger-LeCoultre.