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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,904 companies indexed · Last updated: today
DirectoryRetail & CommerceJewellerWinterthurRomer AG
Romer AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Romer AG is the manufacture, repair and sale of watches and jewelry. The company also offers services such as watch revision and the production of individual pieces of jewelry.

AI-generated
Presence

Service area

Offering

Products & services

Industry:Jeweller
✓ Offered8
Watch sales
Brand watches and fashion watches from Swiss manufacturers as well as selected brands such as Tissot, Certina, Longines, Rado, Mondaine, Cluse and Fossil.
Jewellery sales
Jewellery made of gold, silver, platinum and other materials, including jewellery brands such as Fischer, Palido, Argento Furioso, Ti Sento, Coeur-de-Lyon, JGZ and SNW.
Own jewellery creations
Individually designed jewellery pieces from the in-house studio, from the sketch to the finished jewellery, including special requests and one-off pieces.
Wedding rings
Wedding rings and friendship rings in yellow, red and “white gold”, sometimes also in platinum, palladium or silver; individually made wedding rings to your wishes.
Engagement rings
Engagement rings in different materials and price ranges, including solitaire and alliance rings as well as HAPPINESS models, to match the wedding ring.
Jewellery repairs
Repairs of jewellery in the in-house studio, with short repair times and spare parts, so that favourite jewellery can be available again as quickly as possible.
Old gold appraisals
Appraisals for gold jewellery, platinum and palladium, including checks of fineness, replacement value appraisals and insurance valuations.
Ear piercing
Ear piercing from Tuesday to Saturday without prior registration, also for children from 3 years old.
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4.4/5

Romer AG

Trust & reputation

ranQ Trust Score of Romer AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of November 2026

Romer AG scores 81.4 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.69.224%
  • 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.100.010%
  • 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.95.08%
Romer AG scores 89.3 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.70.07%
Romer AG scores 86.7 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).86.722%
Romer AG scores 9.7 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 35.9.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Romer AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.4 out of 5 stars from 53 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 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 53 reviews across all connected sources

Sources
GGoogle4.453
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Köhlbergstrasse 8
8405 Winterthur
Opening hours
Mon
09:00 - 18:30
Tue
09:00 - 18:30
Wed
09:00 - 18:30
Thu
09:00 - 18:30
Fri
09:00 - 18:30
Sat
09:00 - 17:00
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.151.267
Founded
1981 · 45 years
Last commercial register change
January 16, 2026
Employees
11 to 20

Active in 1 of 26 cantons · 1 municipality

  • ZHWinterthur
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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