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Essential Guide to Bezel Insert Dimensions for Seiko Watch Modding

Essential Guide to Bezel Insert Dimensions for Seiko Watch Modding

When customizing Seiko watches, one of the most popular modifications is changing the bezel insert. This upgrade not only enhances the watch's aesthetic appeal but also allows for a more personalized touch. Below is a detailed guide on bezel insert dimensions for commonly modded Seiko watches, which will help you select the right insert for your project.

Why Upgrade Your Bezel Insert?

  1. Aesthetic Enhancement: Changing the bezel insert can significantly alter the look of your Seiko watch, giving it a fresh and unique appearance.
  2. Improved Functionality: Some bezel inserts come with different markings or luminescence that can enhance the functionality of your watch.
  3. Personalization: Customizing the bezel insert allows you to express your personal style and preferences.

How To Measure Your Bezel Inserts? 

Commonly Modded Seiko Watches and Bezel Insert Dimensions

Below is a table detailing the dimensions of bezel inserts for popular Seiko models. This information will assist you in selecting the correct size and fit for your modifications.

 Models Model Number Outer Diameter (mm) Inner Diameter (mm)
Seiko Diver 6105-8110 / 6306-7000 / 6309-7040 / 6309-7290 / 7002 / 7549 / 7S26-0020 38.00 31.50
Seiko Diver 6105-8000 37.10 31.50
Seiko Tuna SBBN007 / SBBN017 38.50 31.50
Seiko SKX SKX007 / SKX009 (Flat Insert) 38.00 31.50
Seiko SKX SKX007 / SKX009 (Sloped Insert) 38.00 30.60
Seiko SKX SKX013 33.70 27.50
Seiko SKX 7S27-0040 37.80 37.50
Seiko 62MAS 6217-8000 37.00 31.75
Seiko Prospex SRPB99 / SRPB49J1 / SRPD23 / SRPB53J 41.00 32.30
Seiko Prospex SRPC93J1 / SRPB51K1 / SRPB49 / SRPB53 / SRPB55 / SRPB99K1 41.00 32.30
Seiko SBDC SBDC001 / SBDC003 / SDBC031 / SBDC033 40.00 31.20
Seiko SBDC SBDC053 40.35 32.50
Seiko SRP Turtle SRP777 / SRP773 / SRP775 / SRP779 38.00 32.50
Seiko Street Series SNE541 / SNE580 / SNE581 / SNE559 / SNE561 / SNE563 37.20 29.00
Seiko PADI SRP773 / SRP 777 / SRPA21 39.00 32.50
Casio Duro MDV-106 40.90 32.70

 

Tips for Choosing the Right Bezel Insert

  1. Check Compatibility: Ensure the bezel insert matches the model of your Seiko watch in terms of diameter and thickness.
  2. Consider Design: Choose a design that complements your watch’s style and meets your personal preferences.

Conclusion

Upgrading the bezel insert is a straightforward yet impactful way to personalize your Seiko watch. With the correct dimensions and design, you can enhance both the look and functionality of your timepiece. Use the provided dimensions to make an informed choice for your next modification project.

For additional assistance or to find compatible bezel inserts, feel free to always drop us an email or look into watch forums or consult with professional watch modders. 

View our list of Bezel Inserts here.