Royal Oak 37mm Case
37mm Royal Oak Case – Iconic Design for Seiko Mods
Inspired by the timeless Royal Oak silhouette, this 37mm case is built for NH35, NH36, NH70, and NH72 movements. It’s the perfect base for your next Seiko mod, combining sharp lines, integrated lugs, and a brushed finish for a luxury feel. Designed for builders who want bold aesthetics without compromising fit or function.
37mm Royal Oak Case – Refined Proportions for Everyday Mods
This 37mm Royal Oak-style case offers a balanced, wearable take on the iconic design—perfect for Seiko modders who prefer subtlety without sacrificing character. Built to fit NH35, NH36, NH70, and NH72 movements, it features crisp brushing, integrated lugs, and a slim profile that feels premium on the wrist. Ideal for classic skeleton mods or minimalist custom builds.
🛠 Browse Movements:
Pair your mod case with a reliable NH movement to power your custom build — browse compatible movements here.
🎯 Browse Dials:
From skeleton cuts to brushed finishes, find the perfect dial to match your case — explore our full dial collection.
🖐️ Browse Hands:
Complete your Seiko mod with the right set of hands for a balanced, high-contrast look — shop hands designed for NH builds.
FAQs
A “Seiko Mod” refers to a custom Seiko watch that has been altered to match an individual’s style or functional needs.
Modifications can be purely aesthetic, such as changing the dial, case, hands, or bezel, or functional, such as improving movement accuracy or durability with features like water resistance. These modifications provide watch enthusiasts the opportunity to create a unique timepiece that fits their personal preferences and enhances their watch-wearing experience.
Seiko modding is a fun and creative way to customize your watch. If you’re just starting, you’ll need basic tools and parts like dials, braces and hands to personalize your timepiece. Explore our shop for compatible parts, and feel free to reach out for help identifying the right components or installing them. Our resources are here to make your modding journey easy and enjoyable!
Shipping from our workshop in Norway has an estimated delivery of 7-14 days worldwide.
Let customers speak for us
This is the perfect size for this style of case. The quality of the cases is top-notch, they feel and look excellent. Additionally, Mathias from Nomods is also very friendly and professional and helped me out with all my questions and customization requests.
Perfect size, perfect size case with the bezel being the right size. It is not too thick or too narrow, it is just right
Very nice case and very good quality
Nice seller
I am creating a custom watch build for my brother who works at a gym. I wanted something equal parts sport and elegance and the Petrichor meets and exceeds my standards for both. Really solid build quality with exceptional finishing, and a comfortable micro-adjustable bracelet to boot. I will be buying from NoMods again.
Fantastic quality. Looks exactly like the image. Looks great.
I recently ordered a watch case from this company and was blown away by the quality. The craftsmanship is outstanding — solid, well-finished, and clearly made with attention to detail. It exceeded my expectations in every way.
What impressed me even more was their customer service. There was a small issue with the shipping, but they handled it quickly and professionally. They responded fast, kept me updated, and made sure everything was resolved without any hassle.
It’s rare to find a company that delivers both top-tier products and great support. Highly recommended if you’re looking for premium watch modding cases and a team that truly stands behind what they sell.
After years of research I finally found the 37mm case which is perfect in size. Excellent quality!
I’ve always loved the look of the Royal Oak, really any Genta case design. I’ve been a fan of his work for as long as I can remember. When I came across the Nomods website I was blown away. Not only did they sell one of my favorite case designs of all time, they sell it in a wide variety of color options and what I consider the perfect size. There are other Royal Oak cases out there but this is the only one in 37mm that takes a 28.5mm dial with zero modifications. I’m very excited to see what Nomods has planned for the future with new releases. They are doing things no other mod store is doing.
Mathias from Nomods is excellent, and very responsive. I had a few questions about the product and he got back to me right away and was very helpful. I ended up buying the 37mm AP case and skeleton dial and they are beautiful and well made. I appreciate the quality and customer service!!
Shopping was fast to the USA. The case is of great quality. Nobody is doing the RO case in 37mm which fits my wrist so much better than those big ones on AliX. Not to mention the quality is worlds better than AliX. I really look forward to what they have coming down the pipeline. I see they have a new design in the works that looks incredible and very unique. I now follow them closely on Instagram so I don’t miss a thing. Can’t wait for what’s next!