manufactured · input

Watch Hairspring (Balance Spring)

The balance spring (hairspring) — the regulating heart of a mechanical watch. >95% of the Swiss watch industry depends on Swatch Group's Nivarox FAR; viable alternatives cost ~10x and lack the alloy expertise.

8

Source countries

4

Companies

1

Goods affected

0

Claims on record

What depends on it

Goods that need this input

1 essential American goods rely on watch hairspring (balance spring) somewhere upstream in their supply chain.

Where it comes from

Source countries

Share of global supply, by country.

Who makes it

Supplier companies

4 companies produce watch hairspring (balance spring).

The Swatch Group Ltd(UHR.SW)

HQ CH95% shareSOLE SUPPLIER

Swiss watch conglomerate; owns ETA (movements) and Nivarox (hairsprings) — the dominant Swiss movement/component supplier.

Sellita Watch Co SA

HQ CH3% share

Largest independent Swiss movement maker; grew rapidly after ETA restricted third-party ébauche supply, but still relies on Nivarox-class hairsprings.

Rolex SA

HQ CH

100% vertically integrated Swiss watchmaker; casts its own 904L Oystersteel and grade-5 RLX titanium cases; owns former suppliers Genex (cases), Gay Frères (bracelets), Beyeler (dials).

Sigatec SA

HQ CH

Joint venture (Ulysse Nardin / Mimotec) producing SILICON micro-components incl. hairsprings via deep-reactive-ion etching.