Seiko movement
Automatic, self-winding, 41+ hour power reserve, trusted for everyday accuracy.
Datejust Two Tone 36/40mm
RM818RM1,358
Dial color
- Premium look without the luxury price
- Hand-assembled by professionals
- 1-year warranty + worldwide express shipping
Premium hand-assembled Seiko mod — Datejust collection.
316L stainless steel case and bracelet
Sapphire crystal with anti-reflective coating
Seiko automatic movement
1-year warranty · Express worldwide shipping
Genuine Seiko automatic movement
Sapphire crystal with anti-reflective treatment
316L stainless steel case and bracelet
Free express shipping on qualifying orders with duties included.
Assembly and quality testing typically take 3–7 working days before dispatch.
1-year warranty on manufacturing defects — contact us for support.
An automatic watch recharges through the motion of your wrist — no battery required.
If unworn for 42+ hours, wind the crown slightly or wear it again to restart.
This mechanical craftsmanship offers a refined alternative to quartz movements.
Loved by 100,000+ happy customersFree express shipping
2-year warrantyISO-certified durability
1-year warrantyCoverage on craftsmanship & defects
Craftsmanship
Premium craftsmanship in every timepiece
We do not do cheap replicas or mass-produced knockoffs. Every watch is crafted using premium-grade materials and precision-engineered parts, delivering the durability, weight, and feel of true luxury.
Details
Luxury in every detail
Water resistant
3ATM rating for daily wear — protected against rain and everyday splashes.
Sapphire crystal
Ultra-clear, scratch-resistant glass keeps the dial sharp over time.
Stainless steel
316L steel case and bracelet — the same grade used by luxury watchmakers.
Support
Frequently asked questions
Everything you need to know before and after your order.
A Seiko mod is a hand-assembled watch built from a genuine Seiko automatic movement and premium aftermarket components.
It brings iconic design language to a wider audience without counterfeit product.
Assembly: 2–4 working days. Quality testing: 1–3 days. Shipping: 4–8 working days.
Total lead time is typically 7–15 working days. Duties are included in the listed price.
We include a complimentary sizing tool with every order (free of charge).
Follow the included guide carefully to adjust links for a secure, comfortable fit.
Use our configurator to choose case, dial, bracelet, and hands — or contact us for a fully custom build.
1-year warrantyPeace of mind after every purchase
Studio assembledBuilt by professional watchmakers
Free deliveryExpress shipping worldwide
Premium qualityHighest standards for every model