Seiko Mod Movements
Power Your Build with the Right Movement
Every Seiko mod starts with a movement. At Nomods, we stock the most reliable and widely used calibers — the NH35 (date), NH36 (day-date), and specialty skeleton NH7x series. These Japanese automatic movements are hacking, hand-winding, and fully compatible with SKX/5KX, Royal Oak, Aquanaut, and other popular Seiko mod cases.
Whether you’re a first-time modder or building a custom luxury-inspired piece, choosing the right movement ensures accuracy, durability, and perfect compatibility with dials and hands.
FAQs — Seiko Mod Movements
Which movements are most common in Seiko mods?
What’s the difference between NH35 and NH36?
Are NH movements compatible with SKX and 5KX cases?
Do I need special hands for NH35/NH36?
Can I swap between NH and Seiko 7S/4R movements?
What about skeleton or NH7x series movements?
Do movements come regulated?
What tools do I need to install a movement?
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Se alleLet customers speak for us
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
Absolutely love the watch, it look realy good and adjusting the band was really easy
Awesome watch! Excellent piece from these guys. This is the 3rd piece and I have never been let down:
Really well made, very happy with the product.
Very highly quality RO homage case. 37mm is a perfect fit for smaller wrists.
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.
