Seikonaut / Nautilus Style Seiko Modding Case Ultrathin Rosegold
- 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.
Ultra Thin Rosegold Seiko Modding Case
The rosegold Seikonaut case blends refined finishing with the technical achievement of creating one of the thinnest Seiko modding cases ever released. At 9.95mm (closed) and 10.3mm (open), it delivers a slimmer profile than nearly all existing Seiko Nautilus modding cases.
Complete Movement and Dial Fitment
Designed for the most common Seiko calibers—NH35, NH36, NH38, NH70, NH71, and NH72—the case also supports 30.8mm Seiko mod dials. This makes it compatible with a wide variety of modding projects, from skeleton builds to classic Nautilus mods.
Proportions for Seikonaut Builds
Case dimensions are 40mm from 10H–4H and 38mm from 12H–6H, the measurements required to achieve correct Seikonaut proportions.
Premium Rosegold Plating
The case is made from 316L stainless steel and finished with a 20 micron rosegold plating. This is more than double the thickness of “high-quality” aftermarket coatings, ensuring the rosegold tone remains consistent.
Crystal, AR, and Waterproofing
Fitted with a sapphire crystal available in clear or blue AR, the case is rated to 50M waterproofing, giving it both durability and daily usability.
The Foundation of a Luxury Seiko Mod
The rosegold finish is ideal for modders seeking a more luxurious take on the Seiko Nautilus mod style. For those chasing the best Seiko mod builds, this case offers slim engineering, durable materials, and a striking aesthetic foundation.
