Petrichor Seiko Mod

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The Petrichor is an original Nomods design — not a homage to any existing luxury watch. The 37 mm case features a domed sapphire crystal, an integrated steel bracelet, and an 11.6 mm profile that sits cleanly on the wrist. Available as prebuilt watches with NH72 skeleton or NH35 solid-dial movements, or as standalone cases for custom builds. Skeleton models range from $320 to $390 depending on the finish, solid-dial models are $320, and bare cases are $195 each in five finishes. Fits: NH35, NH36 (solid dial) · NH72, NH70, NH71 (skeleton) · Case size: 37 mm (11.6 mm thick) · Dial size: 28.5 mm · Watch out: The Petrichor case uses 28.5 mm dials (the standard Seiko mod size), not 30.8 mm. If you are coming from a Royal Oak 37 mm V2 build, do not reuse those dials — they are too large. Check our dial size guide before ordering parts. How to Choose Your Petrichor 37mm The Petrichor collection offers skeleton and solid-dial builds across several case finishes. Here is how to decide: Skeleton (NH72) vs solid dial (NH35): The skeleton Petrichor models let you see the NH72 movement through the dial and caseback, which pairs well with the domed sapphire crystal for visual depth. Solid-dial models (NH35) with colors like Tiffany, black, white, and rosegold chocolate offer better legibility and a more understated look. Skeleton models are the collection’s signature and start at $320. Case color: Skeleton models come in Silver, Silver Two-Tone Rosegold, Gunmetal, Gunmetal Gold, Rose Gold, and Gold. The Gold finish is $390; all others are $320. Solid-dial models are all $320. PVD finishes (gold, gunmetal, rose gold) add a warm tone but can show wear on high-contact edges over extended daily use. Watch vs bare case: Prebuilt watches ship fully assembled and ready to wear. If you want to build your own Petrichor with a custom dial and hands, start with a bare case ($195) and add your movement, dial, and hands. The case ships with the domed sapphire crystal and gaskets already insta