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SKX013 GS Diver Watch Case - 36mm [NH34-Ready]

10 main components required to complete a watch.
Watch Case
Bezel Insert
Chapter Ring
GMT 24H Hand (optional)
Bracelet (optional)
Strap (optional)
Bridge & Rotor (optional)
Movement Holder (optional)
Tweezer (optional)


  • For pilot bezel or insert-less bezel usage, bezel insert is not required and reduced to 9 main components.
  • For GMT/NH34 watch route, additional part selection of GMT 24H Hand is required. A dial designed specially for GMT/NH34 movement is also required, these can be found here .
  • (Optional) To add bracelet or strap, select your Bracelet or Strap.
  • (Optional) To decorate movement, select your Bridge and Rotor. Recommended with sapphire caseback.
  • (Optional) To have watch assembled, select Assemble Watch. Please note that assembling the entire timepiece requires 2 to 5 business days prior to shipping.

Engineered by us and made exclusively for us with quality assurance by ISO 9001 Certified manufacturers.


The smallest GS diver watch case on the market!!

Fit a bezel insert and this piece will look huge on a wrist.

Drilled through lugs with a unique small 36mm size and is GMT NH34 Movement READY!!

Case fits all our SKX013 mod parts (excluding bracelet). Vastly increasing the modding outlook of the final piece to your preference.

Designed to fit all of our dials (28.5mm) and original NH movements (grey dial holding spacer).

Bracelet selections are made available in the dropdown list above or in the bracelet category .

Watch case tested to 200m water resistant.
    1. Quality Swiss Production Quality, ISO 9001 Certified
    2. Case Material 316L Stainless Steel
    3. Case Diameter 36mm
    4. Case Thickness 9mm (Not including caseback and crystal)
    5. Lug to Lug 44mm
    6. Lug Width 20mm
    7. Crown Screw down
    8. Springbars Universal
    9. Water Resistant 200m / 20atm
    10. Fit Movements NH34, NH35, NH36, NH38, NH70, NH71, NH72
    1. 1x Watch Case
    2. 1x Bezel Click Spring
    3. 1x Crystal Gasket
    4. 1x Caseback Gasket

    *Springbars required are included with bracelet and strap.
    **All photos of watches with modification parts are for illustration purposes only and are not included with modification parts purchased.

  • Recommended Mods With:

    1. SKX013 Mod Parts
    1. A Complete Guide On How To Mod Your SEIKO Watch Dial And Hands (Includes Photos & Video)
    2. Learn about fitting dials with four dial legs

Customer Reviews

Based on 6 reviews
Brian (Dallas, US)
Using this mod part for: Custom Build with NH-36
Really great little case

I love that someone is making a high quality 36mm dive case for modders. And it's an attractively finished case with good proportions too. I used the case, corresponding bracelet, dial, hands and chapter ring as well as the sapphire crystal from this shop and I'm stunned by the results. See for yourself in my photos.

Paul (Auckland, NZ)
Using this mod part for: SKX013
SKX013 Diver 36mm Watch Case.

Super well finished case. Looks fabulous.

Nick (Melbourne, US)
36 case

Solid case! Perfect size for my smaller wrists. Great finish and high quality use of materials.

Viet L. (Hanoi, VN)
Using this mod part for: Baby turtle

fits so well with my small wrist but the case is a bit thick

DD (Triesen, LI)
Using this mod part for: Custom build
Quality 10/10 but THICK

The case is well made just like im used to from LA parts, but nothing prepared me for the thickness of that chonker on my girlywrist when fully assembled, i measured ~15mm with the domed crystal and the thin (!) version of the solid casebacks. Something to consider, if you dont mind that, go for it!!

Modder 4.l. (Pawling, US)
Using this mod part for: building from the ground up
Looks good

Haven't used it yet, but all looks to be of good quality.