FAQs — Petrichor 37 mm Seiko Mod Parts
What dial size fits the Petrichor 37 mm?+
The Petrichor 37 mm uses 28.5–29.0 mm dials with NH35/NH36 movements. This makes it compatible with the same standard dials as SKX/5KX builds.
Is the Petrichor case smaller than the Royal Oak 37?+
Both are 37 mm cases, but Petrichor emphasizes a slimmer wrist presence. Dial and movement compatibility is similar, though design cues differ.
Which crystals fit the Petrichor 37?+
Most builds use double-domed sapphire crystals for the right hand clearance. Always check the crystal height and profile in the case listing.
Guides & inspiration
View allLet customers speak for us
Perfect Seikoak mod
Everything was perfect. Shipping was fast and the product is of very good quality. In my opinion this is a the best Royal Oak mod you'll find on internet
Ismail Abdelmalki
Seiko mod – Royal Oak 37mm Silver
love the watch
Absolutely love the watch, it look realy good and adjusting the band was really easy
lars de groot
Seiko Mod Royal Oak OEM Birch
Very Reliable
Awesome watch! Excellent piece from these guys. This is the 3rd piece and I have never been let down:
H.
Seiko mod - Nautilus Skeleton Silver
Wonderful watch
Really well made, very happy with the product.
Jay B
Seiko Mod - Royal Oak Skeleton 41mm Gun Metal Gray
Very highly quality RO homage case
Very highly quality RO homage case. 37mm is a perfect fit for smaller wrists.
Samuel
Royal Oak 37mm Seiko Mod Case Silver
Perfect Case, Amazing Brand
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.
Oz
Royal Oak 37mm Seiko Mod Case Silver
Perfect case
Perfect size, perfect size case with the bezel being the right size. It is not too thick or too narrow, it is just right
Oz
Royal Oak 37mm Seiko Mod Case Rose gold
Very nice
Very nice case and very good quality
Nice seller
David
Royal Oak 37mm Seiko Mod Case Silver
Unique and gorgeous watch case
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.
Samuel
Petrichor Seiko Mod Case Silver
