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SKX013 Brushed Silver Chapter Ring - GMT 24H Numerals

A brushed silver chapter ring with black 24 hour numerals and minute markers designed specifically for the replacement of SEIKO SKX013 original plastic chapter ring or for use on our cases. An excellent cosmetic enhancement to create a unique visual.

Recommended for use with GMT NH34 Movement.

Dimension of this chapter ring has been customised for greater clearance, perfect fitting and pairing of our dials onto SKX013.

Made exclusively for us with quality assurance by ISO 9001 Certified manufacturers.

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    1. Quality Swiss Production Quality, ISO 9001 Certified
    2. Material Brass
    3. Surface Finish Brushed
    4. Colour Silver
    5. Hour Markers Black, GMT 24H
    6. Minute Markers Black
    7. Dimension Half the size of OEM for greater clearance
    8. Outer Diameter 28.5mm
    9. Inner Diameter 26.5mm
    10. Pin Stabiliser* No
      * SKX013 original plastic chapter ring has a protruding pin at the base to stabilise the alignment of its hour and minute markers to the watch dial. You will need to manually align and adhere this chapter ring to the dial
    11. Fit Diver's Watch Case - 38mm, SKX013, SKX015, SKX017 and all 7S26-0030 Watch Cases
    1. 1x Chapter Ring

    All photos of watches with modification parts are for illustration purposes only and are not included with modification parts purchased.

  • Recommended Mods With:

    1. GMT 24H Watch Mod Parts

Customer Reviews

Based on 3 reviews
67%
(2)
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33%
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D
Damian D. (Cypress, US)
Using this mod part for: GS
Almost Useless

This chapter ring only works if you are using GMT movement. If not, it is rather useless and it does not look well.
Another reason this chapter ring sucks, it will not sit flush on your dial if it has raised indicies. L.A. did not take into consideraron the proper dimensions for raised indicies. QC needs to step up!

Hi Damian,

Thank you for taking the time to leave a review for our SKX013 Brushed Silver Chapter Ring – GMT 24H Numerals. We appreciate your feedback and would like to address your concerns.

As stated in both the product name and description, this chapter ring is specifically designed for GMT builds. For non-GMT builds, the 24H markings may not provide the intended function or appearance.

Our chapter rings are manufactured to fit standard Seiko 5 dials (and all our own dials), which follow consistent specifications. For non-standard dials—especially those with raised indices—it is important to review the product’s listed dimensions, including outer and inner diameters, to confirm compatibility. Measuring the applied indices diameter of your own dial before purchase will help ensure a proper fit.

Every chapter ring goes through strict quality control to meet its stated specifications. However, when sourcing parts from different suppliers, variations in dimensions can occur. This is why we always recommend due diligence and precise measurement—especially for experienced modders—to avoid compatibility issues.

We hope this clarifies the intended use and specifications of the product. Should you have any further questions or need guidance for your next build, our team is always here to help.

Best regards,
Adriel
Lucius Atelier | SEIKO Mod Parts

N
Navid S.S. (Edmonton, CA)
Beautiful GMT chapter ring

It is indeed a beautiful chapter ring, a fantastic addition to your GMT build, thank you very much!

P
Prakash W. (Chattanooga, US)
Quality parts

Quality parts and first rate customer service. I will definitely shop here again.