How much does a Datejust-inspired Seiko mod cost?

The exact USD total updates as you choose parts. The default build is a few hundred dollars before shipping and taxes, rather than the roughly $10,500 comparison price shown for the Rolex Datejust 36. It is a parts build inspired by the design, not a Rolex replica.

Which movement should I use for a Datejust-style dial?

Use an NH35 with the standard 3 o'clock date position for the Datejust-style dials in this guide. Check the dial feet and date-window alignment before ordering any alternative movement.

Does this build include a separate crown?

No. The selected Datejust-style case includes its crown, so adding another crown would create an incompatible or duplicate part choice.

How hard is a Datejust-inspired build?

Intermediate. The parts are curated to fit together, but it is still a full movement, dial, hands, bezel, and bracelet assembly. The date alignment and hand clearance deserve a slow final check.

Inspired build

Build a Rolex Datejust 36 inspired Seiko mod

TL;DR

Build a Rolex Datejust 36 inspired Seiko mod from curated, compatible parts. The default build is $374 before shipping or taxes. It is inspired by the look, not a replica of the watch.

Open the default build See the full build guide Read the beginner guide Check the glossary

This is a Rolex Datejust 36 inspired build. Start with a fluted 36mm case, a blue sunburst-style dial, polished baton hands, and a Jubilee bracelet. The options keep the clean date-window dress-watch look while staying within the SKX013-compatible parts system.

The Datejust works because the details are restrained: a compact case, a bright dial, a fluted bezel, and a bracelet that dresses the watch up without making it formal. This build copies that balance, not the Rolex construction or finishing.

Updated 9 July 2026·Assemble Watches Editorial

Some links on this page go to suppliers. We may earn a small commission if you buy through them, at no extra cost to you. It does not affect which parts we list. How we stay free →

Your build

$374

Intermediate · prices in USD

Build

Your build

$374

Intermediate · updates as you choose

The real one

~$10,500

Rolex Datejust 36

Prices are shown in USD and may change at the supplier.

How this differs from the real watch

The Datejust 36 uses Oystersteel, a white-gold fluted bezel, a Cyclops date lens, and a 100m water-resistance rating. This build uses aftermarket steel parts, so do not treat it as water-ready without testing it.
The real Datejust 36 uses Rolex's calibre 3235. This build uses a Seiko NH35, which is a dependable automatic movement but does not match Rolex's precision, power reserve, or finishing.
The real Jubilee bracelet has a much more complex link construction and clasp. The compatible Jubilee and President-style alternatives here capture the dress-watch feel, not the original bracelet construction.

Build this yourself

Dial

These date-window dials give the build its Datejust look. Keep the date aperture aligned with the NH35's standard 3 o'clock date wheel before closing the case.

Movement

The NH35 gives you a hand-windable automatic movement with a standard 3 o'clock date. It is the practical choice for this date-window dial family.

Hands

Polished baton hands keep the dial open and dressy. Silver works with every dial here; yellow gold gives the olive dial a warmer two-tone look.

Case

The 36mm Datejust-style case sets the proportions and includes the fluted-bezel look. It includes its crown, so the guide does not add separate crown or bezel options.

Chapter ring

The mirror-polished silver chapter ring adds the Datejust-style inner minute track and a clean transition between the dial and the fluted case bezel.

Strap or bracelet

Choose the Jubilee for the closest dress-watch texture, the President-style bracelet for a rounder link pattern, or the Oyster for a quieter everyday finish.

Bracelets

Open this exact build in the full builder to check fit and find suppliers →See the full build guide for this exact selection →

Common questions

How much does a Datejust-inspired Seiko mod cost?: The exact USD total updates as you choose parts. The default build is a few hundred dollars before shipping and taxes, rather than the roughly $10,500 comparison price shown for the Rolex Datejust 36. It is a parts build inspired by the design, not a Rolex replica.
Which movement should I use for a Datejust-style dial?: Use an NH35 with the standard 3 o'clock date position for the Datejust-style dials in this guide. Check the dial feet and date-window alignment before ordering any alternative movement.
Does this build include a separate crown?: No. The selected Datejust-style case includes its crown, so adding another crown would create an incompatible or duplicate part choice.
How hard is a Datejust-inspired build?: Intermediate. The parts are curated to fit together, but it is still a full movement, dial, hands, bezel, and bracelet assembly. The date alignment and hand clearance deserve a slow final check.

Build a Rolex Explorer 36 inspired Seiko mod

Interactive Rolex Explorer 36 homage guide: choose a 3-6-9 dial, NH35 movement, Mercedes hands, black chapter ring, and Oyster bracelet with a live visual preview and exact USD total.

Updated 9 July 2026

Best NH36 Dials: Day-Date Sizes, Fitment Specs & Top Picks

The best NH36-compatible day-date dials: 28.5mm diameter, day-date aperture, correct dial feet spacing. Top picks from Namoki and Lucius Atelier with fitment notes.