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Discontinued

GS Watch Case - 39mm

Your parts arrive as one finished watch — assembled and function-checked in my workshop. Adds 3–5 business days before shipping.

Important Note: In order for bracelet to be universally compatible with our oyster bracelet, final GS case will NOT have drilled through lug holes. The blue protector film on the crown is removable. Photos will be updated after the new year. Thank you.

BUILD YOUR OWN WATCH!
ONLY 4 main components are needed to complete a watch.
Watch Case
Dial
Hands
Movement
Rotor (optional)
Movement Holder (optional)
Tweezer (optional)

HOW TO START?

  • For the watch case, select your (1) Case, then (2) Bracelet (optional), and lastly (3) Caseback (To fit different types of movements).
  • For a complete watch, select your (4) Dial, (5) Hands and (6) Movement.
  • To decorate movement, select your (7) Rotor (optional).
  • To have watch assembled, select (8) 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.

FREE WORLDWIDE SHIPPING
The First and Exceedingly High Quality GS Case designed after Limited Edition Grand Seiko SLGH003!

Comes complete with double domed clear AR sapphire, caseback (solid or sapphire), screw down crown with optional solid brushed oyster bracelet.

Designed to fit all of our dials (28.5mm) 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.

The bracelet clasp is also designed to have micro-adjustment without the need for removing or adding links.

Watch case has a water resistant of 200m.

This watch case is 39mm.
For 36mm, visit here
    1. Quality Swiss Production Quality, ISO 9001 Certified
    2. Case Material 316L Stainless Steel
    3. Case Diameter 39mm
    4. Case Thickness 12.8mm
    5. Bracelet Width 20mm taper to 18mm
    6. Lug to Lug 46.5mm
    7. Lug Width 20mm
    8. Crown Screw down
    9. Crystal Double Domed Sapphire with Clear Anti-Reflective Coating
    10. Crystal Size 29.5mm x 1.5mm x 3mm
    11. Water Resistant 200m / 20atm
    12. Fit Movements NH35, NH36, NH38, ETA2824, ETA2893, SW200, SW260, SW330
    1. 1x Watch Case (Inclusive of sapphire and crown)
    2. 1x Oyster Bracelet (Depends on selection)
    3. 1x NH Sapphire Caseback (Depends on selection)
    4. 1x ETA2824/SW200/SW260 Movement Spacer (Depends on selection)
    5. 1x ETA2893/SW330 Movement Spacer (Depends on selection)
    6. 1x ETA2824/SW200/SW260 Sapphire Caseback (Depends on selection)
    7. 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

Customers praised this 39mm watch case for its "stunning" finish and quality construction. The sapphire crystal and bracelet received positive feedback. However, multiple shoppers noted lug hole placement issues - holes are too close to the edge and not well-aligned, making strap installation difficult. Some found the included bracelet's fit problematic. Overall great finishing and build quality, but lug positioning needs improvement.

  • The polishing & brushing are top notch. It catches the light & just beams.
  • The domed sapphire on this case is beautiful
  • The case is visually stunning and it feels like a very high quality piece.
  • 5 stars: 37 (79%)
  • 4 stars: 7 (15%)
  • 3 stars: 3 (6%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
Some of the reviews shown are from related products the merchant grouped with this one.
J
John (San Antonio, US)
Using this mod part for: 39mm GS case
39mm GS GMT

Do business with Lucius Atelier for parts to build a GMT was an enjoyable experience! Adriel was great to communicate and answering every question I had, I could have asked for a better experience. Once received the parts in record time I began the build. Love how the Dial, Case and hands made a fantastic looking GMT watch. I will certainly do future business with Lucius Atelier!!

S
Sean (Edmonton, CA)
39mm GS style

This is the second case I've purchased from Adriel and I was happy to find that the quality is just as good as the first case I bought. I'll for sure order more cases from Adriel in the future.

C
Christopher (Atlanta, US)
Very high quality

Super impressed with the whole experience. I had this watch assembled and it was easily on par with something 2-3x the price you’d buy from a manufacturer.

W
Wessam E. (Riyadh, SA)
Using this mod part for: Aftermarket case
Amazing case, failed chapter ring execution

The case design, material and finishing are simply amazing. Rivals quality from big names. Where it fails is the execution of the mandatory chapter ring, there is no way to fix the chapter ring to the case as you have to install it from the back of the case. So it was sliding around freely, even after fixing the dial the chapter ring moved and the markers became un-aligned.

P
Pedro R. (Mt. Pleasant, US)
Amazing case and products

Where do I begin? This was my first full build, that was not a kit, and I was so glad I purchased from LA. The quality is remarkable. I will be buying again for any of my modding needs.

B
Ben W. (Crawley, GB)
Using this mod part for: Aftermarket case from Lucius Atelier
Gorgeous

Never had an order from Lucius Atelier that has been anything other than fantastic.
I was asked to build a watch with a particularly personal attachment for the commissioner, and L.A. was the obvious recommendation - the parts are always finished to such a high standard, they really are the best in the game for parts for building on the NHxx base.
Lovely brushing and polishing on the case with great crisp lines, nicely proportioned, and effortless to build.
The little handwritten note from Adriel was also a lovely touch. Couldn't be happier, and the recipient of the watch is absolutely delighted.

T
Tommy T. (Lincoln, US)
Using this mod part for: Full custom mod build
Beautiful Watch!

I ordered this GS case built with all of the components that I selected. It was shipped and arrived precisely on time and it is better than I even anticipated. I am amazed at the quality of the watch, the fast shipping and the great communication every step of the process by the vendor.

F
Frederic M. (Paris, FR)
Using this mod part for: Custom build with SKX013 compatibility
Absolutely marvelous !

This case is superb. Nice polish/brushed effect. Vert well made.

E
Erik S. (Meteren, NL)
Using this mod part for: Aftermarket case
Absolutely stunning GS 39mm

For my grail watch I ordered the 39mm GS case and bracelet, Brequet hands and Blue GS 9SA5 rotor.

Case and bracelet came in a nice box. The bracelet is a tight fit. All components are quallity made, the pictures don't do it justice. With this quallity it"s an easy build.

m
mARK G. (Bordon, GB)
Using this mod part for: SKX013 39mm is the key
M.C. Esher inspired

Simple build. Usual feedback about lug holes, but fits my brief for a non diver in my collection that now extends to 5 watches with help from Adriel. NH72 in this case is a winner.

D
Dusan N. (Prague, CZ)
Using this mod part for: Building from scratch
Great products

I bought a dial and the case and they both look awesome.

S
S.S. (Conil de la Frontera, ES)
GS Exp NE15

Quality and sobriety

S
Stefano S. (Conil de la Frontera, ES)
Simple and flawless

50 / 5.000
Resultados de traducción
A product with a high quality / price ratio

C
C. (Jackson, US)
Using this mod part for: Aftermarket GS case
Beautiful Case

Another nicely finished well priced case. I made a lume beast watch for fishing trips, rubber strap because it will get wet, and it should be easy to read night fishing.
Fast delivery. I agree with everyone else's comments on the lug positions, they are in a weird spot but looks good enough with the rubber strap.

N
Nelson M. (Tarentum, US)
Using this mod part for: Aftermarket case with NH35 movement
Seiko Nova

The finishing on this case is really great! The photos don't do it justice. Like others said, the lug bar holes are a bit low and close to the edge. They could be a bit higher.

The case was used along with the starry dial and GS style hands.

K
Kai (Bandar Seri Begawan, BN)
Using this mod part for: GS 39mm case
GS 39mm case tiffany mod

With this GS 39mm case pair with turquoise dial & GS dauphine hands. It turns into a beautiful timepiece. In love with this mod 😍

W
William

I already have a 40mm GS case with the bracelet and was thinking of building another watch with another one I needed to check it if an NH34 will fit under the crystal? Also I was wondering if other bracelets would fit as I don't want both watches to be so similar.

Adriel from LuciusAtelier.com

Hello William!

Thanks for expressing interest in our mod parts!

>> I needed to check it if an NH34 will fit under the crystal?
Technically, yes. But in actual modding, it may not possible for 9 out of 10 modders. You may want to read this article: https://luciusatelier.com/blogs/news/compatibility-breakdown-of-seiko-5-gmt-series-nh34-movement

>> I was wondering if other bracelets would fit
Not sure which version you have. But the current versions of EC and GS cases use the same bracelet (https://luciusatelier.com/collections/bracelets). Older versions or versions not listed within the bracelets are not compatible.

Hope this helps. Let me know if you have any more questions.

Cheers,
Adriel