Nomods Seiko Nautilus Mod Watch – Skeleton NH72 Build in Black PVD, Gray Strap

Seiko Nautilus Mod Watch – Skeleton NH72 Build in Black PVD, Gray Strap

$290.00
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We accept returns/exchanges according to our policy for unworn items in original condition. Custom changes may have different terms — contact us for questions

Seikonaut – Black Skeleton Mod with Rosegold Dial & Gray Strap (40mm)

This Seikonaut build pairs a deep black PVD case with elegant rosegold dial components and a muted gray rubber strap — a color palette that balances visual warmth with everyday versatility.

The watch runs on the Seiko NH72 skeleton movement, offering a fully exposed view of the gear train, balance wheel, and golden bridges beneath. Unlike a standard Seiko Nautilus open heart, which shows only part of the movement, this layout reveals everything — making the mechanics the center of the design.

Rosegold hands and markers offer rich contrast over the open dial, while the gray strap tones down the visual intensity, giving it a sleek, modern profile. Built around a 40mm case, this configuration fits seamlessly into any high-end Seiko mod watches build plan.

It’s a major aesthetic and functional upgrade over a classic Seiko dial — perfect for modders seeking that skeleton look with sharper edges and a more subdued finish.

Disclaimer: This is a custom-built watch assembled by us using genuine TMI (Time Module Inc.) movements, a subsidiary of Seiko Instruments Inc., part of Seiko Group Corporation.
This product is not an official Seiko watch and is not endorsed by or affiliated with Seiko Group Corporation or its subsidiaries.

Other Colors

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.

Clear vs Blue Anti-reflective Coating
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