Nomods Seiko Mod - Petrichor 37mm Gun Metal

Seiko Mod - Petrichor 37mm Gun Metal

$390.00 $320.00 Save 18%
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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

Petrichor Seiko Mod Watch – Gunmetal Case with Silver Skeleton Accents

Stealth meets sophistication. The Petrichor in Gunmetal with Silver Hands and Indexes is a darker, more modern take on our signature Seiko mod. Featuring a matte gunmetal grey finish over 316L stainless steel, this modded Seiko watch feels bold, technical, and effortlessly cool.

Inside, the fully exposed Seiko NH72 skeleton movement delivers both visual depth and mechanical charm — framed by silver markers and skeleton hands that shimmer against the dial’s industrial tones. Paired with a domed sapphire crystal and display caseback, the mechanical architecture takes center stage from every angle.

Designed using premium Seiko mod parts, this is a complete Seiko skeleton mod that ships fully assembled — no tools, no hassle.

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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