Welcome to the DIY Watch Assembly Instruction

In the next two hours, you will dive into the world of watchmaking.

Please relax, take your time, and enjoy the fun of the craft of watchmaking!

 

Integrated Bracelet Watch Assembly Instructions

Before starting, you can familiarize yourself with the tools and parts needed:

Tool kit content introduction

Parts:

  1. strap

  2. movement holder

  3. chapter ring spacer

  4. movement (TMI NH35/NH70)

  5. chapter ring

  6. dial (if you purchased crystal dial, a pack of dial feet is included)

  7. hands (a pair of spare hands is included)

  8. stem and crown (pre-installed to watch case top)

  9. watch case (top)

  10. case back (case back gasket included)

  11. bezel insert

* quick release spring bars (optional depending on strap type)


【Information】

The model used in the following videos may have a different design from the model on your hand,
but the assembly procedure is the same.


1: Dial and Movement Assembly Installation

Introduction: how to use mechanical watches with date

This is a brief introduction to the basics of a mechanical watch with date function, which might prove useful in your subsequent installation.

If you are already familiar with how a mechanical watch works, feel free to skip this video and proceed to the next one.

Content:

  • crown position for setting date

  • when to avoid setting date

  • how to determine AM/PM


1a. Watch Making Hygiene

Watch this tutorial before kick start your Chronograph watchmaking journey. An introduction to proper watch component care and assembly techniques, covering essential tips. Remember to wear your finger cots (2 sizes: Yellow ones bigger & Black ones smaller)

Content:

  • proper watch tools usage

  • proper watch component care

  • assembly techniques with essential tips


Introduction to the MIYOTA 9 series and wearing finger cots

[IMPORTANT] Please refrain from taking the movement from the movement box before you wear the finger cots.

For this 9075 kit, we recommend wearing finger cots on the 1st 4 fingers of your non-dominant hand, and the 1st 2 fingers of your dominant hand. This is how it would look when you are handling your components with your non-dominant hand, and tools with your dominant hand.


Preparing case parts

Your watch case comes pre-assembled in order to keep it clean. We can disassemble the watch case before we get started


1: Dial and Movement Assembly Installation


1a. Handling the 9075, and the removal and installation of stem and crown

Watch assembly and basic watch repair require you to install and remove the stem and crown. You will need to do this multiple times throughout this workshop.

You can skip this video if you know how to handle a mechanical movement and how to remove the stem and crown from a Miyota 9 series movement


1b. Installing dial


2: Hand Installation and Adjustment

A few notes on watch hand installation (specific information for this 9075 MAXI GMT)


If this is your first time installing hands, it might be quite difficult. You can take a break first before continuing.


3: Installing Case and Other Parts

3a. Cleaning parts and movement assembly

Instruction on how to clean parts and movement assembly

Content:

  • Using hand pump

  • Using rodico

  • Using peg wood


3b. Cleaning watch case

In this part, we will clean the watch case

Content:

  • Avoid touching the inside of case

  • Using rodico, peg wood, and suede for cleaning


3c. Installing chapter ring and watch case

In this part, we will install the movement assembly with hands into the case

If you used a second hand installation assisting tool or other movement holders, you can refer to video 1b under “Dial & movement” section to install the case movement holder.

Content:

  • Installing assembly

  • Aligning movement and stem

  • Installing case back

3d. (optional) Installing custom rotor

If you have customised a rotor, replace the factory default rotor with your custom rotor.

Content:

  • Finding the right screwdriver

  • Removing the rotor

  • Putting on the new rotor

For Seiko rotor:

3e. (optional) Switching bezels.

This video will outline the key steps to remove and install bezels compatible with our 42mm Divers.

If you need to convert your bezel from uni-directional 60-click or 120-click to bi-directional 24-click (or vice versa), you will need to watch the following video.


If you need to reinstall any of the components, you can refer to this:


FINAL CHECK!

  1. Check for proper watch functions by winding and setting time. When hands are being turned, check if they come into contact with other hands or parts.

  2. Check for dust or dirt on crystal, hands, dial or other parts. If needed, you can remove the case to clean the inside.

  3. Check if the case back and the screw-down crown is securely fastened. If not, water resistance capability of the watch might be compromised.


Almost there!

Good job! You are now one step away from your DIY watch!