Seikonaut / Nautilus Style Seiko Modding Case Ultrathin Two-tone Silver Gold
- Sapphire Crystal
- 100M waterproof
- 316L Stainless Steel
We offer free shipping directly from the factory! This way we can ensure fast delivery at a reasonable price.
- 37mm
- 11.6mm thick (Including glass)
- Domed Sapphire Crystal
- 100M waterproof
- 316L Stainless steel
- Fits NH35, NH38, NH36, NH70, NH71, NH72 etc...
Note: This is a pre-order of the CASE ONLY. Final production may vary slightly from the current specifications. The thinnest Seiko mod case on the market is 9.96 mm. While our design targets a slimmer profile, if the final thickness is slightly higher and does not set a new record, this will not qualify for a refund.
A Nautilus Seiko Mod Case in Two-Tone
This two-tone Seikonaut case in silver and yellow gold is engineered as part of a project to deliver the thinnest Seiko modding case available worldwide. With thickness of 9.95mm (closed back) or 10.3mm (open back), it brings the proportions of luxury integrated-bracelet watches into the Seiko modding world.
Full Movement Compatibility
The case supports the most popular Seiko movements used in modding: NH35, NH36, NH38, NH70, NH71, and NH72. Designed for a 30.8mm dial, it ensures proper alignment and fit for both classic and skeleton Seiko modding dials.
Balanced Nautilus Dimensions
The Nautilus design requires correct proportions to look authentic. Measuring 40mm (10H–4H) and 38mm (12H–6H), this two-tone case provides those balanced dimensions while offering a slimmer, more wearable profile than typical Seiko mod cases.
Superior Materials for Seiko Modding
Constructed from 316L stainless steel and finished with a 20 micron two-tone plating, this case goes far beyond the industry standard. Where many Seiko modding cases use thinner coatings, this level of plating ensures the two-tone finish maintains its depth and durability over time.
Sapphire and Caseback Options
Fitted with a sapphire crystal available in clear AR or blue AR, the case combines luxury clarity with functional protection. You can select between an open caseback for showcasing skeleton Seiko mod builds, or a closed back for maximum thinness.
A Standout Choice for Seiko Modding Enthusiasts
For modders who want to build a Seiko Nautilus mod with both thin proportions and a luxurious two-tone finish, this case provides the technical specifications and materials to support one of the best Seiko mods possible.
