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

Caseback (Fits Movement Types)

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


  • For the watch case, select your (1) Caseback (To fit different types of movements).
  • For a non-GMT watch route, select your (2) Crown(3) Dial, (4) Hands, (5) Chapter Ring and (6) Movement.
  • For GMT NH34 watch route, additional selection of (7) GMT 24H Hand (optional). A dial designed specially for GMT NH34 movement is also required, these can be found here .
  • To add bracelet or strap, select your (8) Bracelet or Strap (optional).
  • To decorate movement, select your (9) Bridge and Rotor (optional).
  • To have watch assembled, select (10) Assemble Watch (optional). 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.


GS Diver, the first GS Case 36mm with crown guard. A sporty and classic design of Grand Seiko Diver's True Original.

This watch case is GMT NH34 Movement READY!!

Case comes only with double domed clear AR sapphire and caseback (solid or sapphire).

We have made this case to fit our SKX013 crowns and SKX013 chapter rings. Vastly increasing the modding outlook of the final piece to your preference.

Designed to fit all of our dials (28.5mm), SKX013 crownsSKX013 chapter rings and original NH movements (grey dial holding spacer). Additionally, case has ability to fit ETA2824/SW200/SW260 and ETA2893/SW330 movements. Special spacer and caseback provided.

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 12.5mm (Solid Caseback), 13mm (Sapphire Caseback)
    5. Lug to Lug 43mm
    6. Lug Width 20mm
    7. Crown Screw down
    8. Crystal Double Domed Sapphire with Clear Anti-Reflective Coating
    9. Crystal Size 29.5mm x 1.5mm x 3mm
    10. Water Resistant 200m / 20atm
    11. Fit Movements NH34, NH35, NH36, NH38, NH72, ETA2824, ETA2893, SW200, SW260, SW330
    1. 1x Watch Case (Sapphire Installed)
    2. 1x NH Caseback (Depends on selection)
    3. 1x ETA2824/SW200/SW260 Movement Spacer (Depends on selection)
    4. 1x ETA2893/SW330 Movement Spacer (Depends on selection)
    5. 1x ETA2824/SW200/SW260 Sapphire Caseback (Depends on selection)
    6. 1x ETA2893/SW330 Sapphire Caseback (Depends on selection)

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

  • Recommended Mods With:

    1. Swiss Super-LumiNova® BGW9 Hands
    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 12 reviews
Damien (Tancon, FR)
Using this mod part for: GS Diver Watch Case - 36mm
Beautiful GS case

This is my very first purchase from Adriel's store and I'm delighted. This GS case is truly magnificent. If I had to complain about anything, it would be its thickness.
This case will finally give new life to an old dial from the 70s. The gold chapter ring is a real bonus.

Spencer R.
GS-style Diver

Very pleased with the watch. I’m not a modder but mods offer the chance to give me the exact watch that I want. I chose all the pieces and paid for assembly, and I’m very pleased with what I got. I’d love to buy another watch from you in the future.

Reviewer avatar
Zachary (Singapore, SG)
Pretty Good

A really well-made case

B.M. (London, GB)
Using this mod part for: GS

Beautiful Finishing

N.T. (Zurich, CH)
Using this mod part for: From scratch, skx013 size
Amazing case with great finishing!

I love the mix of polished and brushed, and the elegance that this case brings to nh35/34 builds! Was a joy to assmble.

Santiago G.R. (Barcelona, ES)
GS diver; a great and original option.

This case was suggested by Adriel himself. If not I wouldn't have gone for it. Thankfully I follow his advise because the case is great.

Quality is, as always with LA, outstanding. The crystal is almost invisible. It wears a bit bigger than 36mm and I like that.

Loved the case and the result and now its my new favorite watch.

Brogue O. (Croydon, GB)
Using this mod part for: Aftermarket cases
Great case.

I’d already built a watch with LA’s original 36mm GS case and I chose this version with crown guards for my first GMT build.

The cases share a family resemblance but the addition of crown guards gives the newer case a sportier feeling and a distinct personality. The case is well made, precisely machined and I love how the caseback tucks up right inside the case and almost disappears from view.

I also bought the matching bracelet which is a fantastic accompaniment to the case and a perfect fit.

Using this mod part for: Aftermarket
Amazing GS Case

This case is fantastic, beautifully finished with awesome sharp lines between the brushing and polishing. Will upload some photos of the finished build soon.

Erik S. (Meteren, NL)
Absolutely fantastic!

For a few custom builts I needed a smal case that looked big.
Well, this is it. Absolute great quallity. I love the polishing.

Sam (Perth, AU)

Really nice case, quality is 10/10 and the fit and finish is amazing. Would highly recommend to anyone.