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Discontinued

SKX013 Brushed Black Chapter Ring - White Markers

A brushed black chapter ring for SKX013 builds.

A 1mm-wide replacement for the SEIKO SKX013 original plastic chapter ring, or for use on our cases. Dimensions customised for greater clearance, perfect fitting and a clean pairing with our dials. A cosmetic enhancement that sharpens the whole dial.

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 Black
    5. Hour Markers White
    6. Minute Markers White
    7. Dimension 1mm (width reduction of OEM for greater clearance)
    8. Outer Diameter 28.5mm
    9. Inner Diameter 26.5mm
    10. Pin Stabiliser Without — uniform design holds alignment; adhesive may be used to secure
    11. Fit SKX013, SKX015, SKX017, all 7S26-0030 cases, and our cases
    1. 1x Chapter Ring

    All photos of watches with modification parts are for illustration only and are not included with the chapter ring purchase.

  • Recommended mods with:

    1. Seiko Mod Dials
    2. Seiko Mod Hands

Questions, Answered

Everything worth knowing before you build.

What is a chapter ring on a watch?

The chapter ring is the ring that sits between the dial edge and the case, carrying the minute and hour markings around the dial. On SEIKO's SKX models it's a plastic part from the factory; ours is machined brass with printed markings for a crisper, more finished look. Swapping it is one of the simplest cosmetic upgrades in a Seiko mod — a small part with a big effect on how sharp the dial side reads.

What is an SKX013 chapter ring and why does it matter?

A specific size and spec used by Seiko in the SKX013 (discontinued 2019). The LA smaller-case lineup all uses this same spec, which means dozens of chapter ring designs work across every smaller case in the catalogue.

Will this chapter ring fit my SKX013?

Yes — it's made for the SKX013 and also fits the SKX015, SKX017, all 7S26-0030 watch cases, and our own cases. Dimensions are customised over the OEM ring for greater clearance and a clean pairing with our dials.

How does the chapter ring stay aligned without the OEM's pin?

The SKX013's original plastic chapter ring has a protruding pin at its base to lock the hour and minute markers in line with the dial. Our ring does away with the pin — its uniform structure means alignment isn't affected in normal fitting. If you want it locked absolutely solid, a small amount of adhesive can be used to secure the ring's position.

Should I choose the normal or the ultra thin chapter ring?

The choice depends on your dial, not the caseboth sizes fit every Ultra Thin Edition case. If your dial has applied (raised) indices, the ultra thin chapter ring is the better choice because its slimmer profile gives the indices clearance instead of resting on top of them. If your dial is flat-printed (no applied markers), either size works. When in doubt, the ultra thin chapter ring is the safer default because it works with both dial types.

Do I need to remove the sapphire crystal to install the chapter ring?

No — and that's the whole point of us pre-installing the sapphire for you. The chapter ring sits on top of the dial inside the case, not under the crystal, so the crystal stays where it is throughout the build. (If you ever do need to remove the sapphire — for example, to replace it — that's a workshop job we handle for you, not an at-home step.)

Customers praised this brushed black chapter ring for its "perfect fit" with aftermarket SKX013 dials and larger inner diameter. Shoppers highlighted "excellent quality," fast shipping, and professional service with personal touches. Most found it ideal for watch builds, though one customer noted insufficient clearance for a specific dial.

  • Excellent quality and outstanding fit on my Seiko OEM dial!
  • This chapter ring fits perfectly now!
  • Great fit and finish and shipping was timely.
  • 5 stars: 11 (92%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (8%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
SGR (Ichihara, JP)
SRP491 dial

This chapter ring is a perfect fit.

A
A L. (Knoxville, US)
Using this mod part for: SKX013
Fits Perfectly...Great Service

If you're adding an aftermarket dial to your SKX013 and the hour indices are farther out on the dial, your original chapter ring won't fit. This chapter ring is thinner and a perfect fit with upgraded dials. It's very well made.

A note on Adriel: I had a question about something on the website and got a response very quickly. When my orders come they always have a personal note in the box and it doesn't seem pre-written. It's like buying parts from a friend. Great Job, Adriel!

F
Faissal J. (Marseille, FR)
Using this mod part for: Skx013
Top

Super qualité et livraison rapide

A
A G.Y. (Newham, GB)
Excellent chapter ring

Excellent quality and outstanding fit on my Seiko OEM dial!

B
Balázs B. (Budapest, HU)
Using this mod part for: SKX013
SeikonL SKX013 chapter ring

I ordered only a very small part. Adriel was very kind and professional, I got continous info about the status if the delivery.
The handwritten note came with the item was very kind an personal.

T
Trevor S. (Plymouth, US)
Using this mod part for: SKX013
Exactly What I Needed

This is a perfect fit if you need a chapter ring with a larger inner diameter than the original skx013 chapter ring.

M
Marcus J. (Malmo, SE)
Very nice

Very fast shipping
Nicely and well packaged
The chapter ring is exactly what I wanted

C
Colin (Dayton, US)
Using this mod part for: Aftermarket SKX013 case
Perfect fit

I like some others who reviewed this item, hastily bought the incorrect chapter ring for an SKX013 build that did not fit the dial I wanted to use. This chapter ring fits perfectly now!

H
Hiro (Shizuoka, JP)
Perfect!

It has high dimensional accuracy and fits perfectly on the SEIKO Mini Turtle dial.

D
DAVID F. (Passaic, US)
SKX013 Thin Chapter Ring

I was pretty hasty when planning my 013 build and was not aware that standard chapter rings may not fit all dials in this sized case. Luckily Lucius Atelier had a thin chapter ring that fit perfectly. I paid a little extra for expedited shipping and it was well worth it. Great fit and finish and shipping was timely. The hand written note from Adriel was icing on the cake - little things like that show that owners are truly engaged in their business and care about customer satisfaction. Would definitely order from here again.

Z
Zach B. (Arlington, US)
Using this mod part for: Skx013
Not thin enough

Even though this is advertised as allowing more clearance for a variety of dials, it doesn’t have enough clearance for my seiko Mohawk. Great quality and I’ll buy from Adriel again but can only give 3 stars this time.

T
Thien N. (Gotokuji, JP)
Using this mod part for: SKX013
Great quality ring!

The fit is perfect, it is about half the thickness of an SKX013 normal chapter ring.