Royal Oak 41mm Case – Gold

The Gold Royal Oak 41mm wraps the same proven 41 mm platform in a rich gold finish over 316L stainless steel. The octagonal bezel, polished rehaut, and brushed mid-case create the same sharp geometry as the silver version, now with a warm yellow-gold tone that pairs with gold-accent dials and hands. At 41 mm diameter and 51 mm lug-to-lug, this is a statement case for modders who want their build to stand out. Sapphire crystal available in Blue AR, Clear AR, or No AR, screw-down crown, and 100 m water resistance when assembled correctly. Compatible with NH35, NH38, NH70, NH71, and NH72 movements. Includes a spacer ring for 30.8 mm dials.

Specifications

Compatibility

Movements: NH35, NH38, NH70, NH71, NH72 — all drop in without modification. The gold case works equally well with solid-dial NH35 builds and skeleton NH70/NH72 builds.

Dials: 30.8 mm dials fit with the included spacer ring. 31.8 mm dials fit directly. The 30.8 mm Gold Index Skeleton Dial is designed to match this case’s gold tone.

Hands: Longer handsets are recommended for the 41 mm dial opening. The Royal Oak Gold Hands match this case finish and are proportioned for the larger dial.

Straps: 22 mm lug width. Compatible with Royal Oak 41mm rubber straps and any standard 22 mm strap or NATO.

What’s Included

• Case body (316L stainless steel, gold finish)
• Sapphire crystal (pre-installed, variant-dependent AR coating)
• Spacer ring (for 30.8 mm dials)
• Screw-down crown
• Caseback gasket and crystal gasket
• Spring bars

Movement, dial, hands, strap, and tools are not included.

Why We Chose This Case

Gold-tone watches are the most eye-catching builds in the Seiko modding world, and getting the gold shade right matters more than most modders realize. A cheap gold finish turns brassy within weeks. The Royal Oak 41mm Gold uses a finish that maintains its warm yellow-gold character over time. The polished rehaut is where this case really separates itself — it creates a bright ring of gold between the dial and bezel that catches light from every angle, adding perceived depth to the dial window. Combined with the sharp octagonal bezel geometry and 100 m water resistance, this is a complete foundation for a gold Royal Oak build at a fraction of the cost.

Build Guide

Difficulty: Moderate — identical build process to all Royal Oak 41mm cases. Take extra care when handling the gold finish to avoid tool marks.

Tools needed: Case opener (or caseback press), hand press or hand setter, stem cutter, movement holder, rodico, and tweezers.

Key steps:

1. Drop the spacer ring into the case if your dial is 30.8 mm.
2. Set the movement (with dial and hands already attached) into the case.
3. Cut the stem to the correct length for this case. Measure twice — cutting too short is the most common first-build mistake and requires a replacement stem.
4. Attach the crown, test winding and time-setting before closing the caseback.
5. Seat the caseback with gasket and tighten evenly.

Tip: Wrap your case opener jaws in painter’s tape to avoid leaving marks on the gold finish.

Full instructions: How to Build Your First Seiko Mod.

Frequently Asked Questions

Complete Your Build

Build a full gold Royal Oak with these matching components:

• Dials: 30.8 mm Skeleton Dial (Gold Index)
• Hands: Royal Oak Gold Hands
• Straps: Black Rubber Strap · Blue Rubber Strap
• Movements: NH35 (solid dial builds) · NH70 (skeleton builds)

Browse the full Royal Oak 41mm Case collection · Recommended parts for this case · 41mm Seiko Mod Parts · All Seiko Mod Cases

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