
Machining of balance wheels made of tungsten and precision mechanics as well as development of watchmaking tools

Dynafer S.A.
La Chaux-de-FondsNew on Amplifa
About Dynafer
Dynafer S.A. is a Swiss company founded in 1982 in La Chaux-de-Fonds, in the heart of the watchmaking region. The company specializes in the machining of balance wheels (masses oscillantes) made of tungsten as well as precision mechanics with the tightest tolerances. In addition, Dynafer develops and manufactures watchmaking tools and operates its own electroplating (galvanoplastics) facility with small quantities of gold. Customers come primarily from the watchmaking industry. The company works with a responsible supply chain for tungsten and maintains an internal compliance framework including a code of conduct for suppliers and subcontractors.
- Site
- La Chaux-de-Fonds, Switzerland
- Processes
- Usinage de masse oscillante (milling of balance wheels), Mécanique de haute précision, Recherche et développement d'outillages horlogers / fabrication d'outillages horlogers, Galvanoplastie (electroplating, small quantities of gold), Turning of balance wheels (usinage de masse oscillante), Mechanics of the highest precision, Research & development of watchmaking tools, Electroplating (galvanoplastics)
- Materials
- Tungstène (tungsten), Or (gold, via galvanoplastics), Étain (tin), Tantale (tantalum), Tungsten, Gold (galvanoplastics), Tin, Tantalum
- Founded
- 1982
- Industries
- Watchmaking industry
- 01
Engineering/Watchmaking tools
- 02
CNC machining (balance wheels, precision mechanics)
- 03
Electroplating (galvanoplastics)
- 04
Assembly/Delivery
Materials & Processes
Tungsten
Main material for balance wheels; high density and hardness for watch regulation.
Gold (galvanoplastics)
Electroplated deposition in small quantities.
Tin
Metal identified as part of 3TG compliance.
Tantalum
No direct purchases identified; part of raw material compliance.
Locations

La Chaux-de-Fonds
CHHeadquarters & Production
- Materials
- Tungsten, Gold
- Machining machines for balance wheels
- Electroplating
Components



Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Usinage de masse oscillante (milling of balance wheels)Machining | – | – | – | – | Tungsten (tungstène) |
| Mécanique de haute précisionMachining | – | – | – | – | – |
| Recherche et développement d'outillages horlogers / fabrication d'outillages horlogersEngineering | – | – | – | – | Tungsten (tungstène) |
| Galvanoplastie (electroplating, small quantities of gold)Surface treatment | – | – | – | – | Gold |
Additional services
History
- 1982
Founded in La Chaux-de-Fonds, in the heart of the watchmaking region.