Rosegold Seikonaut Case | Seiko Nautilus Modding NH35 NH72

Name: Rose Gold Seikonaut Seiko Mod Case – NH35/NH7X (Ultra-Thin)
Brand: Nomods
Price: 149.0 USD
Availability: InStock

Nomods Solid caseback / Clear AR Rose Gold Seikonaut Seiko Mod Case – NH35/NH7X (Ultra-Thin)

Nomods Exhibition caseback / Clear AR Rose Gold Seikonaut Seiko Mod Case – NH35/NH7X (Ultra-Thin)

Nomods Seikonaut / Nautilus Style Seiko Modding Case Ultrathin Rosegold

$149.00

Tax included.

Caseback

Exhibition caseback

Solid caseback

Anti-Reflective Coating

Clear AR

Blue AR

FREE SHIPPING OVER 99$

In stock, ready to ship
Backordered, shipping soon

Orders are processed within 1–3 business days (excluding weekends and holidays).

We accept returns/exchanges according to our policy for unworn items in original condition. Custom changes may have different terms — contact us for questions

The Nomods Ultra Thin Rose Gold Seikonaut case blends refined aesthetics with groundbreaking engineering to create one of the slimmest Seiko modding cases ever made. Measuring 9.95 mm (closed) and 10.3 mm (open caseback), it offers an exceptionally sleek Nautilus-inspired profile rarely seen in Seiko mods. Designed for NH35, NH36, NH38, NH70, NH71, and NH72 movements, it fits 30.8 mm dials, supporting skeleton, open-heart, and classic Seiko mod configurations.

• Dimensions: 40 mm (10H–4H) × 38 mm (12H–6H)
• Material: 316L stainless steel with 20-micron rose gold plating
• Crystal: Sapphire with clear or blue AR coating
• Water Resistance: 50 m
• Includes: Case, Caseback (solid or open), Crown, Gaskets, Bracelet
• Note: Thickness may vary depending on how tightly back is screwed in.

Crafted for modders seeking a refined, luxury Seiko mod foundation, this rose gold Seikonaut case offers the precision, slim engineering, and durability required to build a truly premium Seiko mod experience.

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Other Colors

Clear vs Blue Anti-reflective Coating

FAQs

Nomods is based in Oslo, Norway. We offer shipping from our workshop here, or directly from our factory depending on buyers location. Read more about this in our shipping policy!

We do not offer counterfeit logos on our products.

Contact us for a customized logo

If you are having a hard time removing the screws from the bracelet, take the case and bracelet under some warm soapy water and wiggle each link back and forth. This will clean out residue from production which makes the screws easier to remove and improve the bracelet quality over all

AR coating stands for Anti reflective coating and reduces the reflection in the crystal enhancing visibility. Blue AR has a slightly tinted reflection while Clear AR has not.

Scroll down to see the comparison!

No it does not! Our 37mm Royal Oak Seiko Modding case arrives as one complete case, and is ready to house a movement straight from the box.

In order to make this Seiko Mod Case as thin as possible, there is limited room in the back of the case. Therefore some custom NH35 rotors do not fit. Pay close attention to the respective rotor. Does it exceed the height of the middle screw? If yes then it may be too thick for this case.

We recommend a 28.5/29mm dial for our 37mm Royal Oak Case. The typical 31.8mm mod dials that many Royal Oak Mod Cases use are too big.

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Rose Gold Seikonaut Seiko Mod Case – NH35/NH7X (Ultra-Thin)

Clear vs Blue Anti-reflective Coating

SS - Product Addons

Customer Reviews