StretchLearn Course

Service Your First Watches at the Bench With Confidence

Opening cases, batteries, stems, crystals, bracelet sizing, and quartz movement care, taught the way bench watchmakers actually work.

Preview Curriculum Back to Catalog

Beginner9 hr 25 minSelf PacedRegistered

Course Overview

What this course is designed to develop

This course takes you from a closed watch you are afraid to touch to confidently opening it, changing the cell, replacing a stem and crown, swapping a crystal, and sizing a bracelet to fit. You will learn the inspection, demagnetizing, and light cleaning and lubrication steps that bring a tired quartz movement back to reliable timekeeping. No electronics design or software required, just a proper toolkit, the right consumables, and the discipline that separates a clean repair from a ruined watch.

Learning Outcomes

What the learner should be able to understand, build, or execute.

Open and reseal snap-back, screw-back, and screw-down case backs without scratching the case or pinching the gasket

Replace a silver-oxide cell using correct handling, identify the IEC battery code, and reset an AC (all-clear) contact

Remove and replace a two-piece stem and crown, cutting the stem to length and matching crown size and thread

Press-fit and seal acrylic, mineral, and sapphire crystals to the correct gasket and tension

Size a link bracelet by removing pins or screws and balance links evenly around the clasp

Inspect, demagnetize, clean, and lightly lubricate a quartz movement and verify rate on a timing app or machine

Curriculum Preview

Inside the curriculum: a structured path from fundamentals to execution.

Preview the course structure, see how the modules build on one another, and understand the path this program is designed to take you through.

Module 1

Module 1: The Bench, Tools, and Opening a Case

Set up a clean, anti-static workspace and learn to identify and open the three case-back types without leaving a mark, the single most common cause of beginner damage.

3 lessons

Setting Up a Watchmaker's Bench and ToolkitContent · 45 min

Preview Enabled

Identifying Case Types and Water ResistanceContent · 45 min

LMS Access

Opening Snap, Screw, and Screw-Down BacksContent · 50 min

LMS Access

Module 2

Module 2: Batteries, Stems, and Crowns

Handle the two most common quartz repairs: changing a cell correctly with the right code and AC reset, and removing, fitting, and trimming a two-piece stem and crown.

3 lessons

Replacing a Quartz Battery CorrectlyContent · 45 min

LMS Access

Removing and Fitting Stems and CrownsContent · 50 min

LMS Access

Sizing a Link Bracelet to FitContent · 45 min

LMS Access

Module 3

Module 3: Crystals, Gaskets, and Sealing

Identify and replace the three crystal materials, fit and seal them to the correct tension, and restore water resistance with fresh gaskets and a proper reseal.

3 lessons

Identifying Acrylic, Mineral, and Sapphire CrystalsContent · 45 min

LMS Access

Pressing and Fitting a New CrystalContent · 50 min

LMS Access

Gaskets, Resealing, and Pressure ConsiderationsContent · 45 min

LMS Access

Module 4

Module 4: Inspecting and Servicing a Quartz Movement

Bring a quartz movement back to reliable timekeeping through inspection, demagnetizing, light cleaning, correct lubrication, and verifying rate before you call the job done.

3 lessons

Inspecting and Demagnetizing a MovementContent · 50 min

LMS Access

Cleaning and Lubricating a Quartz MovementContent · 50 min

LMS Access

Testing Rate and Final Quality CheckContent · 45 min

LMS Access

Built for Application

A complete learning path, not a one-off inspiration hit.

This program is designed around progression: focused lessons, structured modules, applied resources, assessments, and a course rhythm that turns information into usable capability.

watch repairwatchmakingquartz movementbattery replacementcrystal replacementbracelet sizingcase openinghorology