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SKX013 Brushed Blue Chapter Ring - GMT 24H Numerals

A brushed blue chapter ring with white 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.


    1. Quality Swiss Production Quality, ISO 9001 Certified
    2. Material Brass
    3. Surface Finish Brushed
    4. Colour Blue
    5. Hour Markers White, GMT 24H
    6. Minute Markers White
    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 5 reviews
Glen C. (Bellwood, US)
Great Stuff!

We done and as expected. Shopping more things today!

Nigel L. (Basingstoke, GB)
Using this mod part for: Ground up build
Brushed Blue and Brushed Ice Blue GMT Chapter Rings

I bought two versions of the GMT chapter ring, undecided which to use for a ground up build. I eventually decided on the Ice Blue version, but both look fine and matched the high quality of other components bought at the same time.


Nice blue color

Andrey K. (Riverside, US)
Using this mod part for: Skx013
Good quality

Lovely company, good quality parts and fast shipping. Solid experience and I hope I can buy some more in the future

Yin-tsu L. (Stockholm, SE)

SKX013 Brushed Blue Chapter Ring - GMT 24H Numerals