SERVICING CHRONOGRAPH WATCHES

This course level is presented in crystal clear 4K video. Here is a full summary of all the modules and lessons found in Level 5 of this course,
Servicing watches with chronograph complications.

OVER 6 HOURS and 40 minutes OF CRYSTAL CLEAR ULTRA HD 4K VIDEO TEACHING

Level 1 of the Watch Repair Course provides more than 6 hours and 40 Minutes of teaching with 54 full ultra high definition 4K videos.

All the images you find below, and on this whole web page are actual screen shots from the lesson videos. Once you have gained access to the course level, you will have access to it for as long as you need – there are no time limits. This will allow you to go over and review all the course content as many times as you like, even after you have completed the course.

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Level 5 – Servicing Chronograph Watches

54 High Definition Videos

Over 6 hours of video lessons

1 Certificate of Completion

All Pricing in USD

Enrollment Cost$175.00

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Each lesson and topic is presented to you in ULTRA high definition 4K video. There are no time limits, you can pause your learning and pick up from where you left off at any time in the future. You have instant access to the course once you have enrolled.

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What you will learn in Level 5

Level 5 of this course provides you with the information required to dive right in to the practical aspects of servicing complicated chronograph movements. You will learn how a chronograph operates, including how all the individual components interact with each other in order to provide the user a display of elapsed time.

DEMONSTRATING THE OPERATION AND SERVICE OF THREE VERY POPULAR MOVEMENTS

There are many different kinds of chronograph designs that have been manufactured over the years, but the principles of operation remain very similar among all of them. This course level will demonstrate the differences between three of the most popular kinds of chronograph movements and show you how each one works along with a demonstration of a full strip down and re-assembly. You will then be shown how to adjust the chronograph components so that the mechanism functions optimally.

Level 5 Course Content

Please find below a detailed description of all the lessons and topics found within Level 5 of the Watch Repair Course.

C5.0.0 Introduction

This video lesson introduces Level 5 of the watch repair course and summarizes the topics discussed throughout the complicated subject of servicing chronograph watch movements.

C5.1.0 The Chronograph Mechanism

THE CHRONOGRAPH MECHANISM in a watch movement

The ability to record intervals of time independently of the running of a mechanical watch, is made possible with the inclusion of a chronograph complication. The topics discussed within this level will help you to understand how the many parts which make up a complicated chronograph movement interact with each other in order to function.

C5.1.1 The Chronograph Components

An overview of the chronograph and the distinction between the different kinds of operation.

C5.1.2 Driving The Chronograph

A look at how a chronograph mechanism is commonly driven.

C5.1.3 The Chronograph Train

We take a closer look at the chronograph train of wheels and how they interact together.

C5.1.4 The Pillar Wheel

In this video lesson we discuss the Pillar Wheel method of operation.

C5.1.5 The Coupling Clutch

The coupling clutch is the main interface between the chronograph train and the regular train of wheels.

C5.1.6 The Return Hammer

Many chronograph mechanisms are designed to cause a component called the Return Hammer, to interact with the chronograph running wheels and cause them to return to a particular position.

C5.2.0 Servicing Chronograph Mechanisms

Now that we have discussed the Chronograph watch movement, we take a look at the individual components and how those components interact with each other in order to provide a record of elapsed time when the user operates the Chronograph, using several common calibers of chronograph movement and demonstrate how they should be serviced.

C5.2.1 Tools And Lubricants

Before we start dismantling our chronograph movement, we should briefly discuss any tools and materials that may be required.

C5.2.2 Chronograph Disassembly

This lesson initiates the demonstration of stripping down our first example chronograph movement. The movement we will be using is manufactured by Sea-Gull and is caliber ST19

C5.2.3 First Steps

Preparations before attempting disassembly of our first demonstration chronograph movement.

C5.2.4 Removing Chronograph Components – Part 1

This lesson details instructions on the safe dismantling of the chronograph movement.

C5.2.5 Removing Chronograph Components – Part 2

Continuing the detailed instructions on the safe dismantling of the chronograph.

C5.2.6 Removing Chronograph Components – Part 3

Concluding the detailed instructions on the safe dismantling of the chronograph components.

C5.3.0 The Cam Based Chronograph

So far during this level, we discussed the Pillar, or Column wheel based chronograph movements. Specifically the Sea-Gull ST19 which is based on the now vintage Venus 175. For this section of the course we shall be using a watch movement based on the design of the Valjoux 7734, the Poljot 3133.

C5.3.1 The Cam Operation

We take a look at how a typical cam based chronograph operates and for this we shall examine our example movement, the Poljot 3133.

C5.3.2 Removing The Chronograph Components

In this video lesson we start to dismantle the Poljot 3133 chronograph components.

C5.3.3 Stripping Down The Base Movement – Part 1

We take apart the base movement of the Poljot 3133.

C5.3.4 Stripping Down The Base Movement – Part 2

We continue to take apart the base movement of the Poljot 3133.

C5.3.5 Rebuilding The Base Movement

Time to re-assemble the movement and we start by rebuilding and lubricating the base movement of the Poljot 3133.

C5.3.6 Rebuilding The Chronograph Mechanism – Part 1

We now demonstrate the rebuilding and lubrication the chronograph components of the Poljot 3133

C5.4.0 The Valjoux 7750

The next movement we shall demonstrate is the Valjoux or ETA 7750. This is a very popular movement that’s been around since the early 1970’s and is still being used by many watch manufacturers today.

C5.4.1 How The Valjoux 7750 Operates

This lesson provides an invaluable insight into how the Valjoux 7750 components interact with each other.

C5.4.2 Removing The Chronograph Components – Part 1

We start to dismantle the Valjoux 7750 chronograph components.

C5.4.3 Removing The Dial Side Components

We dismantle the dial side components such as the calendar and hour recording mechanisms and provide more information on how those components interact with each other.

C5.4.4 Completing The Stripdown

Moving back to the train side, we continue to strip the Valjoux 7750.

C5.4.5 Rebuilding The Base Movement – Part 1

We start to assemble and lubricate the base movement of the Valjoux 7750.

C5.4.6 Rebuilding The Base Movement – Part 2

We continue to assemble and lubricate the base movement of the Valjoux 7750.

C5.5.0 Chronograph Adjustments

The final process of performing a maintenance service on a chronograph movement is to ensure that it is well adjusted and running as expected whether the chronograph function is engaged or not.

C5.5.1 Return Hammer Adjustment

We test the operation of the Return Hammer and make any adjustments needed.

C5.5.2 Adjusting Depth of Engagement

Testing and correcting the depth of engagement between the chronograph train wheels.

C5.5.3 Minute Counting Wheel Adjustment

We take a look at the Minute Counting section and see that it is performing correctly.

C5.6.0 Level 5 Summary

This final video lesson follows your Level 5 assessment and summarizes the lessons learnt throughout level 5, Servicing Chronograph Watch Movements.

Free Level 5 Bonus VIdeos

As a commitment to giving you continuous value for money, you now get these extra bonus videos for FREE when you complete Level 5. This is an on-going project and there will be more coming, again – at no extra charge when they are available.

Recent Reviews For Level 5

Here are some of the most recent feedback comments we have received for Level 5 of our Watch Repair Course. If you are enrolled on any of our course levels, you can send us feedback via a link found on your account dashboard.

Chronograph course review

Submitted on: May 22, 2024

By: jeffrey on Level 5: Servicing Chronograph Watches

I had previously completed Mark’s introductory courses (1, 2 and 3) which in my opinion provide essential core knowledge and skills for anyone wanting to pursue this hobby. I am…

Thanks

Submitted on: January 26, 2024

By: Gopapsi on Level 5: Servicing Chronograph Watches

There was NO WAY I could service a 7750 movement without your videos. Thanks for the great video to make it possible to deal with this complex movement.

Truly inspiring!

Submitted on: February 12, 2023

By: Tjeerd van Eif on Level 5: Servicing Chronograph Watches

Ever since completing the first three levels I have been anxiously looking forward to the release of a next level. Whilst doing so I was actually wondering whether the high…