
Development, machining and assembly of watch movements, habillage and carbon components for Haute Horlogerie.

Jämes Aubert Le Brassus SA
Le Brassus (CH) · Le Noirmont (CH)New on Amplifa
About Jämes Aubert Le Brassus SA
Jämes Aubert Le Brassus SA is a manufacturing service provider specialized in Haute Horlogerie with locations in Le Brassus and Le Noirmont in Switzerland. The company develops exclusive calibres and complete habillage solutions, creates production plans and industrializes projects to series maturity. In its own production, movement and case components such as centre wheels, barrel, mainplate and bridge parts, bezels, case backs and carriers are manufactured on CNC sliding-headstock lathes, CNC turning machines and 3- and 5-axis milling machines, then decorated and finished. A specialized carbon workshop manufactures components from marbled, twill and UD carbon with layer thicknesses from 35 microns as well as photoluminescent and coloured carbon – also as semi-finished products such as plates, shells, tubes and moulded parts. In addition, the company offers assembly and regulation of movements from one-off pieces to large series, the execution of major complications such as tourbillon, extra-plat and perpetual calendar as well as final assembly of finished watches. The teams in Le Brassus and Le Noirmont have more than 20 years of experience in Haute Horlogerie and serve the watch industry and microtechnology.
- Site
- CH-1348 Le Brassus
- Processes
- CNC décolletage, CNC turning, 3-axis milling, 5-axis milling, Decoration / finishing (decoration and finish, watch components), Garnissage (fitting/installation of movement components), Assembly and regulation of movements (assembly and regulation of watch movements, simple to large, Execution of major horological complications (tourbillon, extra-plat, perpetual calendar)
- Materials
- Carbon (marbled, twill, UD components with thin layers from 35 microns), Photoluminescent carbon, Coloured carbon, Carbon (marbled, twill, UD, layer thicknesses from 35 µm)
- Certificates
- SPC and optical inspection, Inspection report with every delivery, Customer access to ERP platform, REACH compliance of materials
- Industries
- Watch industry (Haute Horlogerie), Microtechnology
- 01
Engineering: calibre and habillage development, production plans,
- 02
CNC décolletage and CNC turning
- 03
3- and 5-axis milling
- 04
Decoration and finishing
- 05
Carbon manufacturing (R&D to finished part)
- 06
Garnissage, movement assembly and regulation, final assembly of finished watches
- 07
SPC and optical inspection, delivery with inspection report
Materials and Processes
Carbon (marbled, twill, UD, layer thicknesses from 35 µm)
100 % in-house manufactured components for cases and movements, as semi-finished or finished parts.
Photoluminescent carbon
Further-developed aesthetic carbon variant for watch applications.
Coloured carbon
Aesthetic carbon applications for habillage according to customer specifications.
Locations

Le Brassus
CHHeadquarters (Siège) and manufacturing
- Lot size
- One-off piece to 10'000 parts/month (example 160'000 parts/year)
- Materials
- Carbon (marbled, twill, UD from 35 µm), photoluminescent carbon, coloured carbon
- CNC décolletage (sliding-headstock lathes)
- CNC turning machines
- 3-axis milling machines
- 5-axis milling machines
- Carbon workshop
- Latest-generation optical inspection equipment

Le Noirmont
CHBranch (Succursale) and manufacturing
- Lot size
- One-off piece to 10'000 parts/month (example 160'000 parts/year)
- Materials
- Carbon (marbled, twill, UD from 35 µm), photoluminescent carbon, coloured carbon
- CNC décolletage (sliding-headstock lathes)
- CNC turning machines
- 3-axis milling machines
- 5-axis milling machines
- Latest-generation optical inspection equipment
Components and Services



Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC décolletageMachining | – | – | – | One-off piece (prototype/validation) – 160'000 pieces (example: 10'000 | – |
| CNC turningMachining | – | – | – | One-off piece – 160'000 pieces | – |
| 3-axis millingMachining | – | – | – | One-off piece – 160'000 pieces | – |
| 5-axis millingMachining | – | – | – | One-off piece – 160'000 pieces | – |
| Decoration / finishing (decoration and finish, watch components)Surface | – | – | – | – | – |
| Garnissage (fitting/installation of movement components)Assembly | – | – | – | – | – |
| Assembly and regulation of movements (assembly and regulation of watch movements, simple to largeAssembly | – | – | – | – | – |
| Execution of major horological complications (tourbillon, extra-plat, perpetual calendar)Assembly | – | – | – | – | – |
| Assembly of complete watches (finished watches, final assembly)Assembly | – | – | – | – | – |
| Manufacturing of monoblock striking-work gongs without welding (monofil, bifilar, cathedral)Joining | – | – | – | – | – |
| Manufacturing of carbon components (carbon components: marbled, twill, UD, thin layers from 35Plastics | – | – | – | – | Carbon (CFRP), Photoluminescent carbon, Coloured carbon |
| Calibre development, industrialization, production plan documentationEngineering | – | – | – | – | – |
| SPC quality control and optical inspection, inspection report with every deliveryTesting | – | – | – | – | – |
| Machining of movement and habillage parts (centre wheel, barrel, sliding pinion, mainplate, bridgeMachining | – | – | – | One-off piece – 160'000 pieces | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC décolletage (CNC sliding-headstock lathes) | – | – | – | – | Le Brassus / Le Noirmont |
| CNC turning machine (CNC turning) | – | – | – | – | Le Brassus / Le Noirmont |
| 3-axis milling machine (3-axis milling) | – | – | – | – | Le Brassus / Le Noirmont |
| 5-axis milling machine (5-axis milling) | – | – | – | – | Le Brassus / Le Noirmont |
| Carbon processing workshop (specialized carbon components workshop) | – | – | – | – | Le Brassus / Le Noirmont |
| Latest-generation optical inspection equipment (optical inspection tools) | – | – | – | – | Le Brassus / Le Noirmont |
Additional services
Quality
Modern SPC inspection instruments increase responsiveness in production; latest-generation inspections secure the manufacturing tolerances. Every delivery is supplied with an inspection report; customers receive access to the ERP platform for supply chain management.
| Evidence | Le Brassus | Le Noirmont |
|---|---|---|
| SPC and optical inspection | ||
| Inspection report with every delivery | ||
| Customer access to ERP platform | ||
| REACH compliance of materials |
History
The teams in Le Brassus and Le Noirmont have more than 20 years of experience in Haute Horlogerie.