(with helper tool)

Tool kit content introduction

【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.

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

1b. Preparing case parts

Your watch case comes pre-assembled in order to keep it clean. This part will show you the individual parts of your case:

• Movement holder

• Chapter ring

• Chapter ring spacer

• Case back gasket

Content:

• How to open case back with case back opener

• How to place different parts

1c. Precautions during movement installation

Mechanical movement is the soul of a watch. It takes great care to install it. In this part, we’ll show you what to be mindful of when you install the movement.

Content:

• Introduction of different parts of a movement

• Areas you should not touch

• Areas you can apply pressure on

1d. Installing dial

Please choose below the type of dial you’re assembling:

In this part, we will install the dial. After assembling them, we will proceed to the next part, where we install the watch hands.

Content:

• Install dial onto the movement

The following pictures indicate the movement dial holes (green spot):

Optional: How to remove the dial

To remove the dial, simply use a screw driver, and insert it in between the dial and the movement or movement holder. Inserting the screw driver next to the dial feet will give you a better control. For Seiko NH movements, you can find slots on the movement holder for this purpose.

In this part, we will install the sapphire dial. After assembling them, we will proceed to the next part, where we install the watch hands.

Content:

• Install sapphire dial onto the movement

• Learn how to remove the dial safely

1e. Installing movement holder

In this part, we will install the movement holder onto the movement assembly.

Content:

• How to install the movement holder

【Important】Reminders:

1. During installation, please avoid bending the post for second hand. Otherwise the function of the movement might be compromised.

2. Repeated installation of watch hands may result in loose hands. Therefore please be careful with each installation, and reduce the need for re-installation.

3. An extra set of hands is provided to you in case you need replacement.

2a. Installing hour and minute hand

We will install the hour and minute hands onto the dial and movement assembly.

Content:

• How to pick up an hour hand

• How to install a hand

• Adjusting the level and direction of the hand

2b. (optional) Hands removal instruction

If you need to remove hour or minute hand, watch once before removing yours.

Content:

• How to remove a whole set of hands

• How to remove minute hand

【Important】Reminders:

1. The second hand post is more fragile than that of hour and minute hands. Please be very careful with installation. A bent second hand post will affect the performance of movement.

2. It is recommended to first use a loupe to see the smallest post clearly before attempting to install. If you were not careful with minute hand installation, the second hand post might have been bent. If so, it is impossible to install the second hand.

3. Second hand must remain parallel with the dial. During installation and adjustment, be mindful to keep the second hand level.

4. Instructional video contains detailed description. Please pay attention to its content in its entirety.

2c. Installing second hand (with secondhand installation tool)

Using the secondhand installation helper tool can simplify the process of installing the second hand.

Content:

• Introducing the helper tool

• Using the helper tool to install a second hand

2d. (optional) Second Hand Troubleshoot

Here we will cover most of the problems related to secondhand installation.

You have now finished hands installation. You may press the following button to return to the top section of the tutorial:

[Optional] Bleaching bezel insert

Before installing your case, you can opt to give your bezel insert a faded look by carrying out a process called “bleaching”. Learn how to do it via the button below:

3a. Seiko NH movement stem and crown removal (with secondhand installation tool)

Removing stem and crown is an essential step for watchmaking and watch modification

Content:

• Stem and crown removal method with helper tool

• Stem and crown removal method with tweezers for Seiko NH movement

【Important】Reminders:

It’s time to check everything on the dial, watch hands, and watch case crystal for dust and smudges. Clean them up with the techniques that was mentioned during the Watch Hygiene video.

3b. Installing movement holder and chapter ring installation

In this part, we will install the movement holder and chapter ring before assembly into the watch case

Content:

• Installing assembly

• Aligning movement and stem

• Installing case back

3c. (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:

3d. (optional) switching bezels

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 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!