How to Replace Seiko Diashock, Incobloc &  KiF Springs-Beginners Guide

Beginner’s Guide: Replacing Seiko Diashock, Incabloc, and KiF Springs

If you are a watch enthusiast, you might have come across the terms Seiko Diashock, Incabloc, and KiF Springs. These are the three most common types of shock absorber systems found in mechanical watches. Over time, these springs wear out or get damaged, leading to a reduction in the watch’s precision and performance. Knowing how to replace these springs can save you money and prolong the life of your timepiece. In this beginner’s guide, we’ll go over the basics of replacing Seiko Diashock, Incabloc, and KiF Springs.

Beginner’s Guide: Replacing Seiko Diashock, Incabloc, and KiF Springs


If you’re into watches, you know how important it is to keep them properly maintained. One of the most critical aspects of watch maintenance is replacing shock springs. Shock springs, such as those found in Seiko Diashock, Incabloc, and KiF watch movements, help to protect the jewels and other delicate parts of the watch by minimizing the impact of shock and vibrations. Viewers can sign up for the “It’s About Time” monthly newsletter and become a Watch Repair Tutorial Patreon for advanced workshops, bonus training, and ad-free videos. The writer also uses referral links to frequently used products and participates in Amazon Services LLC Associates Program as an affiliate advertising program. In this article, we will guide you through the process of removing and replacing these types of shock springs. We will also discuss the tools and supplies needed for the job, best practices to follow, and tips to ensure a successful repair. Let’s get started!

Tools and Supplies Needed

To replace Seiko Diashock, Incabloc, and KiF springs, you will need the following tools and supplies:
  • Digital calipers
  • Dumont tweezers
  • Pegwood
  • Micro drill bits
  • Screwdrivers
  • Cleaning and lubrication solution
The above list is not exhaustive, and you may need additional tools and supplies, depending on the specifics of the job.

Best Practices for Working on Shock Springs

Before we dive into the step-by-step process, it’s essential to know some best practices to follow when working on shock springs. These include:
  • Maintaining a clean work surface: Shock springs are small and delicate, and dirt and debris can easily damage them. Make sure to work on a clean surface to avoid any foreign particles from getting in your way or into the movement.
  • Staying focused and mindful: Replacing shock springs requires a high level of precision and concentration. Avoid any distractions, and keep your focus solely on the task at hand.
  • Keeping distractions away: Working on shock springs requires your full attention as any distraction can lead to error. Avoid taking phone calls or responding to messages during the repair.

Step-by-Step Process

Now that you have the necessary tools and best practices in mind let’s dive into the step-by-step process of removing and replacing Seiko Diashock, Incabloc, and KiF-style shock springs.

Step 1: Remove the Balance Assembly

The first step is to remove the balance assembly from the movement. This can be done by reversing the process of disassembly. If you are unsure how to take the movement apart, you should seek out a qualified watchmaker to avoid any damage to the movement.

Step 2: Remove the End Stones

To access the shock springs, you’ll need to remove the end stones on both sides of the balance wheel. Gently lift the end stones with tweezers and set them aside. Be careful not to damage the pivots of the balance staff.

Step 3: Remove the Shock Springs

With the end stones removed, you can now carefully remove the shock springs. It’s essential to avoid bending the springs, as this can cause irreparable damage. Use your tweezers to hold the spring at the bottom and gently guide it out of its hole.

Step 4: Clean and Lubricate the End Stones

Before installing the new shock springs, it’s essential to clean and lubricate the end jewels. Wipe them down with a soft, dry cloth and brush them with cleaning solution, then lubricate them with watch oil before reinstalling the shock springs.

Step 5: Install the New Shock Springs

Carefully install the new shock springs, making sure you guide them into the correct holes without bending them. Reinstall the end stones by gently placing them back onto the balance staff pivots.

Step 6: Reassemble the Balance Assembly

Finally, reassemble the balance assembly by reversing the process of disassembly. Make sure everything is back in place, and double-check your work for any mistakes.      



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Replacing Seiko Diashock, Incabloc, and KiF-style shock springs can be an intimidating task, but with the right tools, knowledge, and approach, it’s a repair that can be done by watch enthusiasts at home. Follow the best practices outlined above, take your time, and work carefully, and you’ll be rewarded with a watch that runs smoothly and reliably for years to come.


  1. Can I replace shock springs on any watch movement? A: Not all watch movements have shock springs, so it’s essential to determine if your watch has these springs before attempting the repair.
  2. Can a beginner replace shock springs on their own? A: With the right tools, materials, and guidance, it’s possible for a beginner to replace shock springs at home. However, if you’re not comfortable working with tiny, fragile parts, it may be best to seek out a professional.
  3. How do I know which types of spring my watch movement has? A: You can determine which type of shock spring your watch has by referring to the watch’s technical sheet or by examining the movement under magnification.
  4. How often should I replace shock springs? A: Shock springs are a wear item and should be replaced whenever the watch is serviced or repaired. The frequency of this replacement depends on the amount of wear on the watch.
  5. What happens if I don’t replace damaged or worn shock springs? A: If damaged or worn shock springs are not replaced, they can lead to increased wear and tear on other components in the watch, leading to potential movement failure.

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