Our Seiko mod watches are built to order around a genuine Japanese automatic movement, most on a Seiko NH35, NH34, NH38 or NH70, with the chronographs running a VK63 meca-quartz. Every watch carries a sapphire crystal, a stainless steel case and a 1-year warranty, and is splash-resistant as standard, with a Swim-Ready upgrade you can add at order time. Made to order, with free worldwide shipping. Made to be looked at twice.
Every Rosevari build in one place. The Seiko mod range covers the shapes collectors actually look for: Datejust and Submariner classics, true dual-time GMTs, integrated-bracelet Royal Oak and Nautilus styles, Daytona chronographs and square-cased Santos designs.
Japanese automatic movements, sapphire crystals, stainless steel cases, made to order with free worldwide shipping. The look of a luxury piece for a fraction of the original, with every part named so you know exactly what you are buying. Not a copy. A choice.
Frequently asked questions
Are Seiko mod watches real automatics?
Yes. Almost every build runs a genuine Seiko automatic movement, the NH35, NH34, NH38 or NH70 depending on the model. They are fully mechanical and self-winding, powered by the motion of your wrist. The chronographs use a VK63 meca-quartz, which pairs a quartz timekeeper with a mechanical sweep on the stopwatch hand.
Is a mod watch an original?
Yes. Every watch is an original Rosevari build: a genuine Japanese automatic movement in a case and dial style that pays homage to the classics. Every watch is sold openly as a Rosevari custom build, never as the genuine article, and we disclose every part we use.
Can I swim or dive with one?
Not as standard. Standard builds are splash-resistant: fine for rain, hand-washing and everyday wear, but not for swimming, showering or diving. To swim with it, add the Swim-Ready 5 ATM upgrade when you order, and screw the crown down before any water.
What does it cost and how long does it take?
Prices show in your currency on each watch. Every build is made to order, in 2 to 4 weeks from order to dispatch, with free worldwide shipping and a 1-year warranty.
Which model should I start with?
The Datejust and Submariner styles are the most versatile and the most popular first watch. If you travel, the GMT adds a true second time zone. If you want the integrated-bracelet look, the Royal Oak and Nautilus styles are the ones to compare.
Browse by finish and dial: Arabic dial Datejust, open heart, and gold and two-tone.
