Name: Spare Caseback – Royal Oak 37mm
Brand: Nomods
Price: 30.0 USD
Availability: InStock

Nomods Silver Royal Oak 37mm Seiko Mod Spare Caseback

Nomods Gold Royal Oak 37mm Seiko Mod Spare Caseback

Nomods Gun metal Royal Oak 37mm Seiko Mod Spare Caseback

Nomods Black PVD Royal Oak 37mm Seiko Mod Spare Caseback

Nomods Rose gold Royal Oak 37mm Seiko Mod Spare Caseback

$30.00

Tax included.

Color — Rose gold

Rose gold

Gold

Gun metal

Black PVD

Silver

Low stock - 5 items left
Backordered, shipping soon

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Genuine 316L Steel & Sapphire

Replacement caseback for the Royal Oak 37mm V2 Ultrathin Seiko mod case. Available in rose gold, gold, gunmetal, and black PVD finishes to match your case color. Each caseback is machined from 316L stainless steel with the same PVD coating as the original. Includes a fresh caseback gasket to maintain the case’s 100 m water resistance rating after installation.

Specifications

Specification	Value
Compatible Case	Royal Oak 37mm V2 Ultrathin
Material	316L Stainless Steel
Finish Options	Rose gold PVD, Gold PVD, Gunmetal, Black PVD
Type	Solid caseback (screw-down)
Water Resistance	Maintains 100 m when gasket is seated correctly

Compatibility

This caseback fits the Royal Oak 37mm V2 Ultrathin case only. It is not compatible with the Royal Oak 41mm case, the Nautilus case, or other Seiko mod case platforms. Select the finish that matches your case: rose gold, gold, gunmetal, or black PVD.

What’s Included

Solid caseback (316L stainless steel, PVD finish per variant)
Caseback gasket

Caseback opener tool is not included.

Frequently Asked Questions

What cases does this caseback fit?

This caseback is designed exclusively for the Royal Oak 37mm V2 Ultrathin case. It will not fit the Royal Oak 41mm case, Nautilus case, Petrichor case, or any other Seiko mod case.

Does it come with a gasket?

Yes. A fresh caseback gasket is included. Always replace the gasket when swapping casebacks to maintain the 100 m water resistance rating. Seat the gasket evenly before screwing the caseback into place.

Browse all Royal Oak 37mm cases · Recommended with 37mm Royal Oak · Royal Oak parts · All cases

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.

Orders are processed within 1–3 business days (excluding weekends and holidays).

We accept returns/exchanges according to our policy for unworn items in original condition. Custom changes may have different terms — contact us for questions

Pairs well with

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Other Colors

Clear vs Blue Anti-reflective Coating

Great craftsmanship & great service

I opted for the silver case , nh72 movement & v2 rose-gold hands.
Worked out great!
Amazing quality and very professional communication.
Can absolutely recommend.
I asked for the watch to be assembled before shipping….no problem.
All and all: nothing but praise for the Nomods team.

Product as described

Product as described. Came with adjusting tool with easy removal of screws of the bracelet. Staff responded to email questions.

Seiko Oak 37mm silver

Die Uhr ist exakt so schön wie auf den abgebildeten Fotos und steht diesen in nichts nach.
Material, Verarbeitung und Elleganz sind meine Highlights.
Außerdem kommt die Uhr in einer sehr schönen Verpackung und Case inklusive einem Stellwerkzeug, welches super leicht zu bedienen ist.

Vielen Dank an Mathias und sein Team!

Liebe Grüße aus Deutschland 🇩🇪

Very satisfied

Beautiful case.

This was one of the only 37mm RO mod cases I could find, and I’m glad I went for it. The price is slightly more premium, but you get great quality in return. It has good weight, and the dimensions are great. While not a 1:1 to the real thing, it definitely does a good job of paying homage to the RO.

It was also packaged and protected very well, and so it came in perfect condition. Shipping time was good but do understand that it is dependent on where you live.

This has made me a fan of the brand, and I will definitely keep a lookout for more case iterations and new products in the future.

nice elegant watch

good quality machining , the watch looks great, no complaints

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Spare Caseback – Royal Oak 37mm