A $20,000 Swiss Watch Depends on a Spring Thinner Than Your Hair. Who Makes It?
Imagine buying a $20,000 Swiss watch.
There is one name on the dial. Rolex, perhaps, or another well-known Swiss watchmaker.
It seems reasonable to assume that the company whose name is on the front made the watch.
That's broadly true. But open the case and keep going, and the picture becomes more complicated.
There is the dial, the hands and the case. Inside sits the movement, made up of gears, springs, screws, jewels and other tiny components.
Among them is something you can barely see.
The hairspring.
It is a tiny coiled spring, and following it through the Swiss watch industry leads surprisingly far from the luxury boutiques where these watches are sold.
Why Does Such a Tiny Spring Matter?
A mechanical watch has no battery driving its movement.
Energy stored in the mainspring travels through a series of gears. That energy then has to be released at a controlled rate so the watch can keep time.
The balance wheel and hairspring are central to that process.
A simple way to picture them is as a tiny metronome inside the watch. The balance oscillates back and forth while the hairspring expands and contracts with it.
If that rhythm isn't consistent, neither is the time on your wrist.
The dimensions involved are remarkably small.
Rolex says the thinnest section of its Parachrom hairspring is finer than a human hair. Once coiled, the entire spring is only a few millimeters across.
Yet the company describes the hairspring as critical to the precision of its mechanical movements.
That gives us an unusual place to start looking at a $20,000 product.
A watch worth thousands of dollars can depend on the behavior of a spring thinner than your hair.
So who makes something like that?
A Company Most Watch Buyers Have Never Heard Of
One important name is Nivarox-FAR.
You won't find Nivarox written across the dial of a luxury watch. Most people outside the watch industry have probably never heard of it.
Nivarox-FAR is part of Swatch Group, and it specializes in components used in the regulating and escapement systems of mechanical watches.
Its work includes hairsprings, balance components, escape wheels, pallets, pinions, tiny shafts and other precision parts.
These are not particularly glamorous products.
But take some of them away and a mechanical watch doesn't work as intended.
Nivarox operates several production sites in Switzerland's Jura region. Its importance also comes from history.
As the Swiss watch industry consolidated through the 20th century, production of some highly specialized components became concentrated in relatively few hands. Nivarox-FAR emerged as an especially important producer of regulating components, including hairsprings.
For years, that gave it an unusually powerful position in a business that looked far more fragmented from the shop window.
A customer saw dozens of competing watch brands.
Deeper inside the supply chain, some of those brands depended on a much smaller universe of specialized manufacturers.
Why Not Just Make Another Hairspring?
At first glance, the hairspring doesn't look particularly intimidating.
It's a tiny piece of coiled material.
But making one that performs consistently inside a precision mechanical watch is another matter.
The spring repeatedly expands and contracts while maintaining an extremely stable rhythm. Its behavior can be affected by temperature, magnetism, shocks, geometry and minute differences in the material itself.
Producing it therefore isn't simply a matter of making very thin wire and winding it into a spiral.
It involves metallurgy, precision manufacturing, extremely tight tolerances and considerable accumulated know-how.
Rolex's own experience is a good example.
The company spent years developing what became the Parachrom hairspring, using an alloy containing niobium, zirconium and oxygen. Rolex says the resulting hairspring was designed to improve resistance to magnetic fields, temperature changes and shocks.
The interesting part isn't simply that Rolex developed a better spring.
It's that Rolex decided the spring was important enough to make itself.
Why Rolex Wanted Independence
Rolex describes the hairspring as a strategic component.
That wording matters.
If you manufacture an expensive product but depend on another company for a component essential to its performance, you have more than an engineering problem.
You have a business dependency.
What happens if your supplier cannot produce enough?
What if prices rise?
What if access to the technology changes?
What if several competitors need the same supplier at the same time?
For a large watchmaker, mastering the production of a component such as the hairspring can therefore serve several purposes at once.
It gives the company more control over quality and technology, but also more control over its supply chain.
Rolex explicitly talks about independence when describing the development of its own hairspring technology.
That turns a microscopic spring into something much bigger.
It becomes part of a vertical-integration strategy.
The Hidden Layer Beneath the Movement Makers
The supply chain can go several levels deeper.
Most watch buyers have heard of Rolex or Omega. People who know watches may also recognize names such as ETA and Sellita, two important manufacturers of mechanical movements.
Go down another layer and companies such as Nivarox appear.
That creates a simplified chain that can look something like this:
Specialized component manufacturer
↓
Movement manufacturer
↓
Watch brand
↓
Retailer
↓
Customer
The actual chain varies greatly by brand and movement, and many companies manufacture significant parts themselves.
But the structure matters because even a movement supplier can depend on another company for highly specialized components.
A revealing example came from Swatch Group management during its 2025 results discussion. The company said that more than one million Nivarox assortments were being supplied annually to Sellita.
An “assortment” in this context refers to key components around the escapement and regulating system.
So even behind a company that manufactures movements, there can be another layer of specialist manufacturing.
The name on the dial is only the visible end of the chain.
Does That Mean In-House Is Always Better?
Not necessarily.
Luxury manufacturing has another side to it.
Audemars Piguet offers a useful example.
The company openly describes a value chain that includes raw-material suppliers, intermediaries and component suppliers before the process reaches AP manufacturing.
It also says that the overwhelming majority of its Tier 1 and Tier 2 watch-production suppliers are located in Switzerland and neighboring areas.
That isn't necessarily a weakness.
The Swiss watch industry developed around clusters of highly specialized workshops and manufacturers. One business might become exceptionally good at producing a particular component while another specialized somewhere else.
In mass manufacturing, outsourcing can mean finding somewhere cheaper to make something.
In high-end watchmaking, it can also mean finding a specialist that has spent decades learning to make one particular thing extremely well.
Those are very different ideas.
So What Does “In-House Movement” Really Tell You?
This is where luxury-watch language can become confusing.
IN-HOUSE MOVEMENT sounds straightforward.
A customer might reasonably interpret it as:
They made everything themselves.
In reality, manufacturing is rarely that simple.
A watchmaker may design and manufacture its own movement while still sourcing certain materials or specialist components elsewhere. Another company may rely more heavily on an outside movement manufacturer. There are many variations between those two extremes.
Using an outside specialist also doesn't automatically mean a company lacks technical capability.
“In-house” tells you something important about how a watch was developed and manufactured.
It doesn't necessarily tell you the entire story of its supply chain.
And What About “Swiss Made”?
The words SWISS MADE can create a similar impression.
They don't mean that every single component of the watch must have been manufactured in Switzerland.
Swiss law instead sets a series of conditions a watch must satisfy to use the designation.
Among them, at least 60% of the manufacturing costs of the finished watch must be generated in Switzerland. There are also requirements governing the movement, including Swiss value and manufacturing-cost thresholds, as well as requirements concerning technical development.
The rules are meaningful.
But:
Swiss Made
does not simply mean:
Every part was made in Switzerland.
Once again, the label tells us something important without revealing the entire supply chain.
Open the $20,000 Watch Again
Now return to the watch in the display case.
From the outside, it looks simple.
There is a case, a dial and a famous name.
Open it and move deeper:
Brand
↓
Movement
↓
Escapement
↓
Balance
↓
Hairspring
↓
Specialized manufacturers
Behind those manufacturers sit metallurgy, precision machining, patents, tooling and generations of accumulated expertise.
None of this tells us whether a $20,000 watch is worth $20,000.
That's a different question.
It tells us something more useful about the industry that made it.
What appears to be a product from one famous company can actually sit on top of a much larger manufacturing ecosystem.
The Smallest Part Can Be Strategically Important
There is a broader lesson here.
When people think about AI infrastructure, they tend to think about GPUs. But a data center full of GPUs is not much use if it cannot get enough electricity, which is one reason equipment such as transformers has become so important.
Cars have a badge on the hood, but thousands of components and a vast supplier network sit behind it.
Aircraft work the same way.
Luxury watches are no different.
Consumers see the finished product because that's where the brand lives.
To understand the business, however, it can be more revealing to work backward through the product.
The most expensive component isn't always the most strategically important.
And the most famous company isn't always the company controlling the hardest part of the supply chain.
Sometimes the interesting part is almost too small to see.
BEYOND THE OBVIOUS.
Look at a $20,000 Swiss watch and the first thing you notice is the brand.
Open the case and another industry appears.
A hairspring thinner than your hair.
The materials science required to make it.
Companies that spent decades specializing in tiny components.
Watchmakers developing their own technology because they don't want to depend on somebody else.
And networks of specialist suppliers clustered around one of the world's most famous luxury industries.
The name on the dial tells you who sold the watch.
The parts inside tell you how the industry really works.
BEYOND THE OBVIOUS.
Sources
Rolex — Parachrom Technical Brochure
Audemars Piguet — Business Ethics & Supply Chain
Swiss Federal Institute of Intellectual Property — Swiss Made Watches