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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryMechanical Engineering IndustrySonceboz-SombevalMONNIN SA
MONNIN SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Monnin SA is the manufacture of precision components for the watchmaking industry and microtechnology through décolletage (a form of metal processing that produces precise parts through turning, milling or grinding).

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Products & services

Industry:Mechanical Engineering IndustryWatch Industry
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4.3/5

MONNIN SA

✓ Offered7
Precision décolletage of components
Décolletage of complex parts with very small dimensions for watchmaking and microtechnologies, on modern CNC machines and cam machines, with batches from a few dozen to several million parts.
Gear cutting
Gear cutting on CNC lathes, CNC re-cutting gear-cutting machines, face cutting machines and automatic machines with a loader, for gear trains, winding stems, pinions and barrel drums.
Rework and rolling
Rework, touch-up, mechanical deburring, counter-drilling and rolling of décolletage components, with manual or automatic operations to meet tight tolerances.
Polishing and heat treatments
Polishing in batch or bulk, trovalisation, hardening, tempering, softening, bright finishing and automatic washing/de-gumming for watch components.
Assembly of watch components
Assembly of finished components for watch movements, in particular shock absorbers, jewel settings (chatons), watch train components and ball bearings for an oscillating mass.
Decor and surface finishing
Decorations on décolletage products by cerclage, colimaçonnage, satin finishing, softening, diamond-tool surfaces, bluing and metallisations or coatings in different colours.
Vision and touch probing inspection
Reliability testing of ball bearings with a machine that combines measurement by vision and by touch probing.
Trust & reputation

ranQ Trust Score of MONNIN SA: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of October 2026

MONNIN SA scores 70.0 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.67.124%
  • 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.52.910%
  • 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.100.08%
MONNIN SA scores 94.3 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.90.07%
MONNIN SA scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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).83.322%
MONNIN SA scores 54.3 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 35.54.34%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

MONNIN SA reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 out of 5 stars from 7 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
4.4
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle4.47
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Hier entsteht die Karte
Rue Pierre-Pertuis 18
2605 Sonceboz-Sombeval
Opening hours
Mon
07:45 - 11:30, 13:30 - 16:30
Tue
07:45 - 11:30, 13:30 - 16:30
Wed
07:45 - 11:30, 13:30 - 16:30
Thu
07:45 - 11:30, 13:30 - 16:30
Fri
07:45 - 11:30, 13:30 - 15:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.486.485
Founded
1988 · 38 years
Last commercial register change
April 8, 2025
Employees
51 to 100
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.
100.0
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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