
Micromechanical precision parts and luxury components: CNC machining, laser, engraving and assembly for watches, jewelry and micromechanics

TMH SA - Tradition Mécanique Horlogère
La Chaux-de-Fonds (CH)New on Amplifa
About TMH SA
TMH SA (Tradition Mécanique Horlogère) is a manufacturing service provider specializing in ultra-high precision, headquartered in La Chaux-de-Fonds, Switzerland. The company produces complex and custom precision parts as well as luxury components for the luxury watch industry, the high-end jewelry sector and micromechanics – typically in small, special or limited series. Its value chain includes design, 3- and 5-axis CNC milling, Swiss turning (décolletage), laser cutting, laser ablation, laser marking and laser welding, engraving, texturing, skeletonization and the assembly of assemblies and sub-assemblies. Production is carried out to micron-level tolerances; quality inspection includes a KEYENCE measuring system. The customer base includes, for example, Télos Watch (Project P412, skeletonized mainplate). Since January 8, 2024, TMH SA has operated in larger, modernized premises with an expanded mechanical workshop at Bd des Eplatures 37.
- Site
- La Chaux-de-Fonds
- Processes
- Engraving, Laser cutting, Ultra-high precision machining, Texturing, Design, Precision décolletage (Swiss turning), Assembly of ensembles and sub-ensembles, Laser marking
- Materials
- Ultra-high precision machining (3/5 axes), Décolletage (Swiss turning), Laser technology (cutting, ablation, marking, welding), Engraving, Texturing, Skeletonization, Assembly of assemblies
- Certificates
- Dimensional quality control (KEYENCE), Certifications documented
- Industries
- Luxury watch industry, Jewelers/Jewelry, Micromechanics, Luxury components (special/very small series)
- 01
Design/Engineering
- 02
3/5-axis CNC milling
- 03
Swiss turning (Décolletage)
- 04
Laser cutting/ablation
- 05
Laser marking & welding
- 06
Engraving & texturing
- 07
Skeletonization
- 08
Assembly of assemblies
- 09
Quality control
Processes & Materials
Ultra-high precision machining (3/5 axes)
Complex, custom precision parts with micron-level tolerances.
Décolletage (Swiss turning)
Precision turned parts for micromechanics and watch movements.
Laser technology (cutting, ablation, marking, welding)
Cutting, structuring, marking and joining of the smallest components.
Engraving
Decorative and functional markings with extreme precision.
Texturing
Application of unique patterns, reliefs and textures to material surfaces.
Skeletonization
Openwork, filigree movement mainplates and luxury components.
Assembly of assemblies
Assembly of ensembles and sub-ensembles for the luxury segment.
Site

La Chaux-de-Fonds
CHHeadquarters with mechanical workshop (manufacturing)
- Lot size
- Small series / limited series
- 3-axis CNC machining centers
- 5-axis milling machines
- Swiss-type turning machines (Fraiseuses en barre)
- Lathes
- Laser machines (cutting, ablation, marking, welding)
- KEYENCE measuring device
Components



Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| EngravingSurface | – | – | – | – | – |
| Laser cuttingSurface | – | – | – | – | – |
| Ultra-high precision machiningMachining | to the micron | – | – | – | – |
| TexturingSurface | – | – | – | – | – |
| DesignEngineering | – | – | – | – | – |
| Precision décolletage (Swiss turning)Machining | – | – | – | – | – |
| Assembly of ensembles and sub-ensemblesAssembly | – | – | – | – | – |
| Laser markingSurface | – | – | – | – | – |
| Laser ablationSurface | – | – | – | – | – |
| Laser weldingJoining | – | – | – | – | – |
| Component assemblyAssembly | – | – | – | – | – |
| SkeletonizationMachining | – | – | – | – | – |
| Quality control / dimensional inspectionInspection | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis milling machine | – | – | – | – | La Chaux-de-Fonds |
| 3-axis machining machine | – | – | – | – | La Chaux-de-Fonds |
| Swiss-type turning machine (Fraiseuse en barre) | – | – | – | – | La Chaux-de-Fonds |
| Lathe | – | – | – | – | La Chaux-de-Fonds |
| Laser machine (cutting, ablation, marking, welding) | – | – | – | – | La Chaux-de-Fonds |
| KEYENCE inspection device | KEYENCE | – | – | – | La Chaux-de-Fonds |
Additional services
Reference customers
Quality
Quality control includes dimensional inspections of the smallest components, among other things with a KEYENCE measuring system; at TMH, quality takes priority over quantity.
| Evidence | La Chaux-de-Fonds |
|---|---|
| Dimensional quality control (KEYENCE) | |
| Certifications documented |
History
- 2023
Presentation of the current machine fleet (laser and 3/5-axis machining machines, Swiss-type turning machines, inspection equipment) in April 2023.
- 2024
Move from January 8, 2024 into new, larger and modernized premises at Bd des Eplatures 37, La Chaux-de-Fonds, with an expanded mechanical workshop.