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Datejust Watch Case - 36mm

Caseback (Fits Movement Types)

5 main components required to complete a watch.
Watch Case
Chapter Ring
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 complete watch, select your (2) Dial, (3) Hands, (4) Chapter Ring and (5) Movement.
  • To add bracelet or strap, select your (6) Bracelet or Strap (optional).
  • To decorate movement, select your (7) Bridge and Rotor (optional).
  • To have watch assembled, select (8) 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.


The iconic Datejust design that was first introduced in 1945.

Fits SKX013 Chapter Ring. This will vastly increase the modding outlook of the final piece. Chapter ring is now mandatory in this case.

Case comes complete with flat clear AR sapphire, caseback (solid or sapphire) and screw down crown.

Designed to fit all of our dials (28.5mm), SKX013 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 has a water resistant of 200m.

**Note: As NH34 movement requires a significant height clearance for additional 24H hand, this case maintained same slim thickness with second version and henceforth NOT technically NH34-ready. To find out more, please read here .
    1. Quality Swiss Production Quality, ISO 9001 Certified
    2. Case Material 316L Stainless Steel
    3. Case Diameter 36mm
    4. Case Thickness 11.5mm (Solid Caseback), 12mm (Sapphire Caseback)
    5. Case Length 43mm
    6. Lug Width 20mm
    7. Crown Screw down
    8. Crystal Flat Sapphire with Clear Anti-Reflective Coating
    9. Crystal Size 29.5mm x 1.5mm
    10. Water Resistant 200m / 20atm
    11. Fit Movements NH35, NH36, NH38, NH72, ETA2824, ETA2893, SW200, SW260, SW330
    1. 1x Watch Case (Inclusive of sapphire and crown)
    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 7 reviews
T (Cohoes, US)
Using this mod part for: DIY NH38 build

Very high quality piece. Buy with confidence.

Martin B. (Granville, FR)
Perfect case

The finishing on this case is perfect. Can only recommend !

Chris S. (Bradenton, US)
As shown in photos

My watch arrived as shown in the photos provided for each item. Watch was shipped promptly and arrived well packaged.

Kevin S. (Kansas City, US)
Nicest 36mm Case I've Used

This is a great case. Always love that I can count on LA to provide high quality fit and finish. The case is definitely the nicest 36mm case I've found so far. The measurements for it are accurate, but the way it's designed and finished makes it look less bulky than other 36mm cases I've used. So good news for those of you looking for the smallest possible NH compatible case!

nickycanova@hotmail.com (Paris, FR)
Wonderfull timepiece

The parts are greats. Your job to assemble them is nice. Thx a lot !

Alexis D. (Rouen, FR)
Perfact aftermarket Datejust case

This 36mm Datejust case is perfect. With Atelier Lucius bracelet and dial, the best combo for a seiko movement

Charles (Los Angeles, US)
Beautiful Little Case

Very happy that Lucius is providing some variety in case size now, building a custom Seiko for my grandmother and this is the perfect base for it. The case is beautifully finished, paired it with Lucius' jubilee bracelet and they look great together!