ChronoArs

The craft of time

Make time.

Builds

Micro Brands

Start with your movement

Step 1

Not every case or dial fits every movement. Open the parts catalog to see everything on one page, or pick a movement below to start with that filter on. The builder still checks that the parts you pick go together.

Build your own watchNew to this? Read the Bench Guide

Shop by part

Every part is labelled with the movements it fits. Categories fill up as I add parts I've checked.

Tools

The tools you need to build or mod a watch. Some links are affiliate links. ChronoArs may earn a small commission at no extra cost to you.

The Bench Guide

Beginner guides
01

What goes into a watch

The full parts list for an NH35 build.

Read
02

Picking parts that fit

The numbers that have to line up.

Read
03

Putting it together

Crystal, bezel, dial, hands, case, crown.

Read

About ChronoArs

Las Vegas

Hi, I'm Johnny. ChronoArs is where I share the watches I put together and help you build one of your own.

I don't sell anything myself and I don't hold any stock. Every part here is sold and shipped by sellers on AliExpress. That's where most mod parts come from, but it's spread across thousands of shops and hard to browse, and it rarely tells you what fits what. So I do the digging: I sort the parts by movement, check the numbers that matter, and label each one with what it fits. You pick the parts you love, and the builder makes sure they go together.

This is an affiliate site. When you buy through one of my links, I may earn a small commission at no extra cost to you. It's what keeps the site running.

Enjoy the build.

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