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The Encyclopedia of Horology

Tool · Clock mainspring winder

Bergeon No. 30076 Clock Mainspring Winder

Partially verified

This lot features a Bergeon No. 30076 clock mainspring winder set manufactured in Switzerland. Catalogued with its original fitted wooden storage box, the tool comes complete with a winding handle, mounting frame, eight slotted mainspring retainers/drums, and seven arbors. An illustrated trilingual instruction sheet in French, German, and English is affixed to the interior of the lid, demonstrating how to mount the frame in a bench vise and safely wind or insert mainsprings for alarm clocks and clocks.

Bergeon No. 30076 clock mainspring winder set with handle, retainers, and arbors in fitted wooden box
Bergeon No. 30076 clock mainspring winder set with handle, retainers, and arbors in fitted wooden box — Schmitt Horan & Co.. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.bidsquare.com
Category
Tool · Clock mainspring winder
Maker / attribution
Bergeon
Reference
No. 30076
Catalogue / lot identifier
208
Source-reported date
Not established
Country
Switzerland

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Object Identity and Manufacturer

The object is a Bergeon No. 30076 mainspring winder manufactured in Switzerland. The set is intended for use with clock mainsprings.

The kit includes eight mainspring retainers, seven arbors, a winding handle, a mounting frame, and a fitted wooden storage box.

Evidence for this section
  • “Bergeon, Switzerland, a No. 30076 mainspring winder”
  • “with box, 8 mainspring retainers and seven arbors, with winding handle and frame”

Visible Characteristics

The winder body is described as having a light-colored painted finish and features a circular Bergeon badge. The storage box is made of wood and secured with brass hinges and front clasps.

Condition observations include very minor oxide, nicks to the paint, general marks and wear on the box, and a top that has been poorly reglued.

Evidence for this section
  • “Light-colored painted winder body marked with a circular Bergeon badge”
  • “Open wooden box with brass front clasps and hinges”
  • “very minor oxide, nicks to paint, box with marks and wear, top poorly reglued”

Instructional Documentation

A trilingual printed paper instruction label is affixed to the interior of the box lid.

The text on the label is in French, German, and English, and it provides instructions on mounting the frame in a bench vise for the purpose of winding or inserting mainsprings.

Evidence for this section
  • “Trilingual printed paper instruction label pasted inside the lid”

Open research questions

  • What is the complete count of arbors and retainers included in a factory-standard Bergeon 30076 set?
  • Does the trilingual label variant correlate to a specific production era?

Source evidence

Recorded claims and source quotations for Bergeon No. 30076 Clock Mainspring Winder
FieldSource-reported valueSource quotation
Maker and OriginBergeon, Switzerland“Bergeon, Switzerland, a No. 30076 mainspring winder”
Reference NumberNo. 30076“a No. 30076 mainspring winder”
Included ComponentsBox, 8 mainspring retainers, seven arbors, winding handle, frame“with box, 8 mainspring retainers and seven arbors, with winding handle and frame”
Condition AssessmentMinor oxide, paint nicks, worn box with reglued top“very minor oxide, nicks to paint, box with marks and wear, top poorly reglued”
Lot Identifier208“Lot 208”

Visible details

  • Light-colored painted winder body marked with a circular Bergeon badge
  • Open wooden box with brass front clasps and hinges
  • Trilingual printed paper instruction label pasted inside the lid

Research qualifications

  • Underlying manufacturing date is not specified in the catalogue description
  • Box lid exterior and base are not depicted in separate views

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

A Bergeon clock mainspring winder sold at auction on 20th November | Bidsquare

Reviewed 2026-10-22 · Record a95fa4ff23

Terms in this record

Glossary explanations for terms named in this object’s record.