Our datejust-style seiko mods are everyday dress watches built around a genuine Japanese automatic (the Seiko NH35, or a Miyota on the Day-Date builds), wearing clean sunburst dials, fluted-style bezels and jubilee-style bracelets. Every one carries a sapphire crystal 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.
Our most-loved collection. The Seiko Datejust mod rebuilds the timeless dress-watch silhouette on a dependable Japanese automatic movement: Arabic numerals, Roman dials, two-tone and Wimbledon grey, in 36mm and 39mm.
Every piece runs an automatic movement beneath a sapphire crystal, is built to order, and ships free worldwide. Independent and quality-led: a genuine Japanese automatic under sapphire, built to hold up to the second look. Not a copy. A choice.
Frequently asked questions
Is a Datejust mod a real automatic?
Yes. Each one runs a genuine Japanese automatic: the Seiko NH35 on the Datejust builds, a Miyota on the Day-Date builds. It is fully mechanical and self-winding, powered by the motion of your wrist.
Can I swim or dive with it?
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.
Is this an original watch?
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.
How much 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.
Looking for a specific dial? Browse the Arabic dial Datejust builds, our best selling line, or the gold and two-tone range.
