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The 37mm Petrichor Case

The Royal Oak 37mm Case

CREATING YOUR OWN WATCH

You can create your own watch. this way it will fit your style and needs. Perfect for anyone wanting beginning their modding journey. We are highly specialized in Seiko mods, especially we like the NH72 movement.

What is a Seiko mod

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.

FAQs

Yes, we provide a warranty on our modding services and parts. If you encounter any issues, simply contact us, and we’ll be happy to assist.

Most of our parts and watch mods are complete and ready to ship within a few days. For custom watches or custom plated parts the time to complete on average, takes 2-4 weeks.

Yes, we ship worldwide. Shipping times and costs may vary depending on your location, but we ensure safe delivery wherever you are.

Build ideas and suggestions

Nomods Seiko Aquanaut Mod Watch with Silver Finish and Blue Rubber Strap

Aquanaut Skeleton Mod

Using our 30.8mm Nautilus seiko mod dial, custom Royal Oak modding hands, custom case and an original Seiko NH72 Ske
leton movement you can build a high quality custom timepiece that displays the inner workings of an Automatic movement.

🛠️ Make similar Seiko mod


Rose Gold Royal Oak Hands – fits NH72 skeleton builds

NH72 Skeleton Movement – ideal for Seiko modding

Nautilus Skeleton Dial 30.8mm – perfect for open-worked builds

Complete Nautilus Mod Watch – finished mod with NH72 and blue strap

Buy the watch

Petrichor Skeleton Mod

Using our own designed case, you can build a unique innovative 70's inspired sportswatch! With a domed sapphire crystal the can sit even lower which allows for a thin feeling watch!

🛠️ Shop the Mod Parts


Silver Royal Oak Hands – fits NH72 skeleton builds

NH72 Skeleton Movement – ideal for Seiko skeleton mods

28.5mm NH72 Skeleton Dial – perfect for open-worked builds

The Petrichor Seiko Modding Case – finished mod with NH72 and blue strap

Buy the full build

Royal Oak Skeleton Mod 37mm

Build a wrist friendly 37mm Royal Oak Seiko Mod with the only 37mm Royal Oak case for Seiko Modding on the market! Take a look at this skeleton watch featuring our exclusive Seiko Mod Parts!

🛠️ Build your own Seikoak Skeleton


Silver Royal Oak Hands – Perfect for the 37mm Seikoak case

NH72 Skeleton Movement – Best budget Skeleton Movement

28.5mm NH72 Skeleton Dial – Unique skeleton dial with brushed texture

Buy the case – finished mod with NH72 and blue strap

Buy the completed watch

What are Seiko mod watches

A seiko mod watch is a customized timepiece assembled from Seiko Mod parts and original Seiko NH-movements such as the NH35 or NH72. With a set of high quality watch parts and a little technical experience you can assemble unique watches tailored perfectly to your vision.

Browse our Seiko Mod Parts

Based on 33 reviews
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Exactly what I was looking for

After years of research I finally found the 37mm case which is perfect in size. Excellent quality!

Perfect size, perfect platform.

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.

Solid case

The case is solid. Good finishing, good color good execution. I’m just a lil mad the screw driver for the case screws wasn’t included. I ended up absolutely mangling some of the screws for the bracelet and I have no idea how I’m going to replace them. If you like the octagonal style of watch and want a smaller size, this is the case for you. However with that being said, if you’re going to pay the premium for this case, you have to buy the separate screw driver for the case. Take that for what it’s worth.

Great Dial!

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!!

High Quality

Extremely well done case.

Love the case and love the company!

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!

Great Case & Service

The case is perfect and its great to find a Royal Oak style case in a smaller size. Had a self imposed issue with case back screws and after emailing the nomods team they got back to me extremely fast with a solution and replacements. Couldn't be happier with the product and the service.

The Royal Oak

I just received the watch. It's amazing. Much better in person than it looks in the pictures. It came with a custom box and a tool for adjustments. I asked Mithas to adjust it to my wrist size, and it was perfect. I ordered the 37mm, and it's perfect for my 7-inch wrist. As soon as I wore the watch, it looked quite elegant. I highly recommend it. If you like what you see in the pictures, you are going to love the watch.

What a case!

The case is really great built and the tolerances are great, there a couple of hairlines on the bracelet but it's not a big deal. The finishing is in line with the asking price and the extra set of screws is complete with every replacement.

Overall this is a great purchase and Mathias was super kind during the ordering phase. Now my AP collection is complete!

Great Case

Quality oak style case very impressed. Packaging was nice and secure, comes with useful tools as well. Only point of criticism is no half link but was told these will be available in march!

Very nice Case

Nomods was very helpful with the question i got.
Delivery was a little long due too christmas and new year.
Quality of the product blow mymind nothing to compare on what you found elsewhere, the finish, the saphire crystal, bracelet can be adjusted easely.
Movement dial and hands where easy to assemble.

Great case, only 2 gripes

2 bracelet screws broke (getting new ones) and no half link

Very Happy

Most expensive case I've ever bought, but im very very happy. One screwhead broke of while adjusting the bracelet, but I got a new link + screw without any problems. Absolutely would buy again.

Great finish, easy install

Great finish, easy install

P
Royal Oak Dial 28.5mm (Inactive old)
Philip Mcneilly
Perfect dial for oak style skeleton watch

Paired with the 37mm case this dial fit perfectly and looks great!

Excellent quality

Love the case. Great size and the quality is excellent. The case, bracelet and clasp all feel very nice on the wrist

J
Seiko NH35 TMI
Jonel Li
Works perfectly!

Movement of choice for my first build. Received packed well with no issues after the build

Very classy case, love it!

Got the black one for my first build and love the quality and convenience of it being prebuilt.

Perfect!

Chose this for my first build and works beautifully! Would order again

AP style 37mm yellow gold

Case is awesome !! Quality is great. Very good customer support. Waiting for new project to come. Highly recommend.

Royal oak case 37mm

The case looks good quality, I wish that it would be little cheaper, but the quality makes up for the price.

Great quality

Better quality than expected. Thank you for producing this!

Great version of ap case !

I’ve just received the case and I have been very surprised by the quality of case ! Incredible ! And the 37mm case it’s just perfect, before I have 41mm case and I prefer the smaller version ! Thanks !

Very impressed with the case

Still waiting on parts to assemble the mod, but very happy with the case so far. The perfect size for my 60mm wrist.

C
Oak Skeleton Silver
Customer
Instant leveranse!

Fantastisk respons og leveranse. Anbefales på det sterkeste!