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The Encyclopedia of Horology

Movement · Wristwatch movement

Laco Calibre 861 Wristwatch Movement

Partially verified

This object is a wristwatch movement produced by the German manufacturer Laco Durowe, circa 1962. It is catalogued by the German Clock Museum as an Armbanduhrwerk, specifically identified as a Laco calibre 861. The museum also notes an association between this Laco movement and the Timex M67 calibre. The movement is circular with a diameter of 3.10 cm. The construction features visible brass and steel components, including a prominent balance bridge signed with the 'LACO' name. The base plate is marked 'WEST GERMANY' and includes an inscription indicating the jewel count. This movement is held within the permanent collection of the Deutsches Uhrenmuseum Furtwangen. The technical documentation provides dimensions and identifies the manufacturer as Deutsche Uhren-Rohwerke Fabrik, highlighting the collaborative or internal production context of this calibre.

A detailed view of the Laco 861 movement, showing the balance bridge, markings, and internal plate components.
A detailed view of the Laco 861 movement, showing the balance bridge, markings, and internal plate components. — German Clock Museum via Europeana. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
orbiscollectibles.com
Category
Movement · Wristwatch movement
Maker / attribution
Laco Durowe
Reference
Laco 861
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
c. 1962
Source-reported place
Germany

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

Construction and Technical Specification

The movement, categorized by the German Clock Museum as an 'Armbanduhrwerk', exhibits a design consistent with mid-20th-century German caliber production. It is confirmed as a Laco calibre 861, which holds a functional correspondence to the Timex M67 movement.

With a stated diameter of 3.10 cm, the movement is constructed to fit standard wristwatch cases of the era. The visible arrangement shows a balance wheel assembly, a central bridge with the Laco manufacturer's mark, and a notable translucent disc component mounted to the upper plate.

Evidence for this section
  • “Movement for wristwatch calibre Laco 861 = Timex M67, Lacher, Pforzheim, c. 1962”
  • “Diameter: 3.10 cm”

Identification and Markings

The movement contains specific identifying marks that clarify its origin and specifications. The balance bridge is clearly engraved with the brand name 'LACO', identifying the movement's lineage within the Laco Durowe output.

The main plate is marked with the country of origin, 'WEST GERMANY', providing a clear geographic context for its manufacture in Pforzheim. The plate also features a jewel count inscription, confirming its functional standard.

Evidence for this section
  • “Lacher (Laco Durowe), Pforzheim”
  • “maker recorded: Laco Durowe; Deutsche Uhren-Rohwerke Fabrik”

Provenance and Collection Data

The movement is part of the collection at the German Clock Museum (Deutsches Uhrenmuseum Furtwangen). It is formally accessioned with museum documentation that links its production to the Pforzheim watchmaking industry.

The record is classified as a 'partial' individual type. The museum provides the primary technical data, including the dimensions and the manufacturer identification, which serves as the fundamental record for this specimen.

Evidence for this section
  • “held by German Clock Museum”
  • “The museum record gives measurements Diameter: 3.10 cm; maker recorded: Laco Durowe; Deutsche Uhren-Rohwerke Fabrik.”

Open research questions

  • What is the exact function of the translucent component visible in the movement photograph?
  • What specific production year within the Laco Durowe facility is assigned to the calibre 861?

Source evidence

Recorded claims and source quotations for Laco Calibre 861 Wristwatch Movement
FieldSource-reported valueSource quotation
MakerLaco Durowe“maker recorded: Laco Durowe”
CalibreLaco 861“Movement for wristwatch calibre Laco 861”
Associated CalibreTimex M67“Timex M67”
Datec. 1962“c. 1962”
Diameter3.10 cm“Diameter: 3.10 cm”
Production PlacePforzheim“Pforzheim”
Holding InstitutionGerman Clock Museum“held by German Clock Museum”

Visible details

  • Balance bridge engraved with LACO branding
  • Base plate inscribed with 'WEST GERMANY' and jewel count
  • Translucent plastic or acetate component integrated into the upper bridge assembly
  • Circular movement plate structure

Research qualifications

  • Verification of the Timex M67 correlation requires further technical evidence
  • Material composition of all internal gears and components remains unverified by independent inspection

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

Consulted source

Wristwatch movement, Lacher (Laco Durowe), Pforzheim, c. 1962

Reviewed 2026-11-02 · Record 5ce85eefac

Terms in this record

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

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