Buy a Seiko Mod
A Seiko mod is a hand-assembled watch built around a genuine Seiko automatic movement — not a mass product, not a counterfeit, but a homage to iconic designs at a fraction of the original price. Here is exactly what you get for your money, what to look out for, and which collection fits you.
What is a Seiko mod?
A Seiko mod (short for "modified") takes a genuine Seiko movement and pairs it with matched aftermarket parts: case, dial, hands, bezel and bracelet. The result is a watch of its own, styled after well-known references and built to be worn. Every MedoMods runs on a genuine Seiko NH35 automatic movement inside a 316L stainless steel case with a sapphire crystal.
Why buy from MedoMods?
Each watch is assembled, checked and quality-controlled individually before it ships. You get:
- A genuine Seiko NH35 movement with hand-winding and a hacking seconds hand
- 316L stainless steel and a scratch-resistant sapphire crystal, water resistant to 5 ATM
- Worldwide insured, tracked shipping — taxes and customs duties included, nothing to pay on delivery
- An adjustable bracelet with a safety folding clasp and a free bracelet adjusting tool
MedoMods is an independent maker and is not affiliated with Seiko or any other brand mentioned.
What to look for when buying
Not every "mod" is built the same. Check three things: the movement (a genuine Seiko NH35/NH36 is serviceable and honestly advertised), the crystal (sapphire over mineral glass lasts a watch lifetime), and the build (an individually checked watch runs clean; an unregulated one can drift). We state the movement, materials and dimensions openly on every model — and we are clear about what a mod is and is not.
Which mod fits you?
Like the diver look? Check the Sub Mod and Aqua Mod. Elegant everyday? Date Mod and Oak Mod. Travel and a second time zone? GMT Mod. Or build your watch from the ground up — in the configurator you pick dial, hands, case and bracelet step by step.
Keep reading & matching models
Frequently asked questions
Is a Seiko mod legal and genuine?
Yes. A mod is an independently built watch with a genuine Seiko movement and aftermarket parts. It does not pretend to be an original product of another brand. Third-party model names are used descriptively only (homage).
Which movement is inside the watches?
Most models use the genuine Seiko NH35 (automatic with date, hand-winding, hacking). Chronographs use a VK63 meca-quartz, and GMT models use a GMT movement with a true second time-zone hand. The exact movement is listed on every product page.
How do shipping, customs and returns work?
We ship worldwide insured with tracking; taxes and customs duties are included in the price, with nothing to pay on delivery. Delivery time depends on destination and order volume. See our policies for return and withdrawal details.
Ready? Build your Seiko mod or browse the collections.
Browse all collectionsMedoMods is an independent maker and is not affiliated with or endorsed by Seiko, Rolex, Patek Philippe, Audemars Piguet or any other brands mentioned. Third-party model names are used descriptively (homage style) only.