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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryWatch IndustryTramelanChatelain Prototypes Sàrl
Chatelain Prototypes Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Chatelain Prototypes Sàrl is the development and manufacture of prototypes and small series for various industries, particularly Haute Horlogerie, micromechanics, medicine, automotive and optics. The company offers specialized services such as precision mechanics, mechanical subcontracting and micromechanics, as well as the development and manufacture of specific tools and fixtures, particularly for the watchmaking industry.

AI-generated
Offering

Products & services

Industry:Watch Industry
✓ Offered6
Prototyping and small-series production
Prototyping for watchmaking and micromechanics, manufacturing of small made-to-order series, machining of prototypes in all materials, assembly and fitting.
Precision mechanical machining
Machining by CNC milling and turning, décolletage, wire EDM, for parts from very small to medium dimensions.
Custom tooling development
Consulting, engineering studies, CAD development, drawings and production of custom tooling for specific needs.
Development and manufacture of watchmaking tooling
Development and manufacture of watchmaking tooling for production and assembly, in particular potences for watchmaking.
Watchmaking potences
Potences for fitting the hands, lever potences, micrometer screw potences, boring potences, lock fitting, standard versions, vacuum and custom-made.
Specific tools
Planetary eight-digit tool, complete estrapadage station, specific testing and inspection equipment, custom tooling for watch parts.
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4.2/5

Chatelain Prototypes Sàrl

Trust & reputation

ranQ Trust Score of Chatelain Prototypes Sàrl: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 96% · As of October 2026

Chatelain Prototypes Sàrl scores 71.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.72.124%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.58.610%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.88.08%
Chatelain Prototypes Sàrl scores 83.0 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Chatelain Prototypes Sàrl scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Chatelain Prototypes Sàrl scores 14.3 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.14.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Chatelain Prototypes Sàrl reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.6 out of 5 stars from 9 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.69
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Rue du Midi 22
2720 Tramelan
Opening hours
Mon
08:00 - 12:00, 13:30 - 16:30
Tue
08:00 - 12:00, 13:30 - 16:30
Wed
08:00 - 12:00, 13:30 - 16:30
Thu
08:00 - 12:00, 13:30 - 16:30
Fri
08:00 - 12:00, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-110.549.506
Founded
2004 · 22 years
Last commercial register change
February 26, 2024
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
88.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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