Petrichor 37mm Case – Gold

The Gold Petrichor captures the warmth and presence of vintage luxury watchmaking. This 37 mm case channels the golden era of the 1960s and 1970s, when watch design prioritized flowing curves over sharp angles. The gold PVD finish over 316L stainless steel gives the Petrichor a rich, warm tone that catches light across its curved surfaces. Fitted with a domed sapphire crystal and compatible with NH35 and NH36 movements, this is a Nomods original design — not a homage — built for modders who want something distinctive in their collection.

Specifications

Compatibility

Movements: NH35 and NH36. The NH72 skeleton movement also fits because it shares the same external dimensions. A gold case paired with the NH72’s golden bridges creates a fully unified warm-toned skeleton build.

Dials: 28.5 mm. Gold cases pair naturally with champagne, gold, or white dials. A black dial creates a bold, high-contrast combination that emphasizes the gold frame.

Hands: Any NH-series compatible hands (hour 1.50 mm, minute 0.88 mm, seconds 0.20 mm). Gold hands maintain a monochromatic look; silver hands add a two-tone dimension.

What’s Included

• Petrichor case body (316L stainless steel, gold PVD finish)
• Domed sapphire crystal (pre-installed)
• Crown (screw-down)
• Gaskets

Tools are not included. You will need a case opener, hand press, stem cutter, and movement holder for assembly.

Designed by Nomods

The Gold Petrichor is where our original case design meets vintage warmth. Gold-tone watches dominated the 1960s and 1970s, and the Petrichor’s curves were drawn with that era in mind. The gold PVD coating is applied via Physical Vapor Deposition for durability that outlasts traditional plating. On the Petrichor’s rounded surfaces, the gold finish creates a continuous gradient of light and shadow rather than the flat gleam you get on angular cases. The domed sapphire adds to this effect — it rounds off the top of the watch, so the entire profile reads as one smooth, warm shape. Each case is inspected for PVD uniformity and finishing consistency before it ships.

Build Guide

Difficulty: Easy to Moderate — same drop-in assembly as other Petrichor cases.

Tools needed: Case opener, hand press, stem cutter, movement holder.

PVD care note: Use soft-jaw tools or protective tape on contact points during assembly to avoid marking the gold PVD finish.

Common mistakes to avoid:

• Stem cutting: Measure the crown tube depth carefully and cut to match. Too long prevents the crown from screwing down; too short prevents engagement with the movement.
• Gasket seating: Verify all gaskets sit evenly before closing the caseback. Pinched or misaligned gaskets compromise water resistance.
• Dial alignment: Ensure the dial feet are fully seated in the movement’s slots before lowering the assembly into the case.

For full step-by-step instructions, read our complete Seiko mod build guide.

Frequently Asked Questions

Complete Your Build

Pair the Gold Petrichor case with these compatible components:

• NH35 Movement — the recommended automatic movement for this case
• Gold Royal Oak 28.5mm Dial — matches the gold case for a unified warm-tone build
• Blue Waffle Dial (28.5mm) — adds a cool-toned contrast against the gold case
• Gold V2 Hands — matching gold hands for a seamless look

Browse Collection

Petrichor 37mm Seiko Mod Parts · All Seiko Mod Cases · Petrichor Watch Modding Case · Seiko Mod Petrichor 37mm

Nomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.