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The Encyclopedia of Horology

Clock · Laterndluhr wall clock

Johann Rettich Biedermeier Laterndluhr Wall Clock

Partially verified

This Biedermeier Laterndluhr wall clock is documented by Antiquorum as made circa 1830 by Johann Rettich in Vienna and numbered 834. The mahogany case is accented with maplewood stringing and features a nine-light glazed structure with a pediment hood, trunk, and undercut base with leveling screws. The white enamel dial displays radial Roman numerals, an outer minute track, blued steel hands, and a cast gilt bronze bezel. The source describes a month-duration movement with tapered brass plates, turned pillars, a five-wheel train, maintaining power, anchor escapement, a brass-clad weight, and a steel rod pendulum with brass bob.

Johann Rettich Biedermeier Laterndluhr wall clock, circa 1830
Johann Rettich Biedermeier Laterndluhr wall clock, circa 1830 — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Clock · Laterndluhr wall clock
Maker / attribution
Johann Rettich
Reference
Not recorded
Catalogue / lot identifier
100
Source-reported date
circa 1830
Country
Austria
Source-reported serial
834

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

Case Construction

The clock is housed in a nine-light mahogany case with maplewood stringing inlay. The design features a pedimented hood with a hinged door, a glazed body, and a molded undercut base.

The case includes adjustable wall spikes for mounting and leveling.

Evidence for this section
  • “Nine-light, the hood with architectural pediment and hinged door, glazed body above molded undercut base,maplewood stringing”
  • “the front screw adjusted wall spikes.”

Dial and Appointments

The white enamel dial features radial Roman numerals and an outer minute track, framed by a cast gilt bronze bezel. The time is indicated by blued steel hands.

The glazed trunk and lower sections allow for the observation of a brass-clad weight and a steel rod pendulum with a brass bob.

Evidence for this section
  • “White enamel, radial Roman numerals, outerminute track, cast gilt bronze bezel. Blued steel hands.”
  • “brass-cladweight, steel rod pendulum with brass bob”

Movement Specifications

The timepiece is described as month-going. The movement features tapered rectangular brass plates with turned tapered pillars and a five-wheel train with maintaining power.

Regulation is provided by an anchor escapement and a crutch with micrometer centering adjustment. The pendulum includes a screw regulation nut.

Evidence for this section
  • “Fine and rare month-going mahogany and maplewood inlaid Biedermeier laterndluhr.”
  • “Tapered rectangular brass plates, turned tapered pillars,five wheel train, maintaining power, anchor escapement, crutch with micrometer centering adjustment”
  • “steel rod pendulum with brass bob and screw regulation nut.”

Open research questions

  • Verify if current documentation exists for Johann Rettich's appointment as Master Clockmaker to the Austrian Imperial Royal Court.
  • Investigate the provenance of serial number 834 within the context of Rettich's output.

Source evidence

Recorded claims and source quotations for Johann Rettich Biedermeier Laterndluhr Wall Clock
FieldSource-reported valueSource quotation
MakerJohann Rettich“Johann Rettich in Wien, No. 834, Made circa 1830.”
Case ConstructionNine-light mahogany and maplewood inlaid“Nine-light, the hood with architectural pediment and hinged door, glazed body above molded undercut base,maplewood stringing”
DurationMonth-going“Fine and rare month-going mahogany and maplewood inlaid Biedermeier laterndluhr.”
EscapementAnchor escapement“five wheel train, maintaining power, anchor escapement”
Dimensions97 x 27 x 12 cm“Dim. 97 x 27 x 12 cm.”
MakerJohann Rettich (No. 834)“Johann Rettich in Wien, No. 834, Made circa 1830.”

Visible details

  • Three-part architectural lantern-style mahogany case featuring string inlay borders.
  • Pediment hood framing a white enamel dial with Roman numerals and a beaded gilt bezel.
  • Glazed trunk displaying a cylindrical brass-clad weight and flat steel pendulum rod.
  • Square glazed lower section housing a large circular brass pendulum bob.
  • Wall-leveling screw fixture visible extending from the lower right side of the case.

Research qualifications

  • Internal movement details such as the wheel count, escapement type, and plate shapes are not directly visible in the photograph and rely entirely on the auction catalog description.
  • The accompanying brass, steel, and bone crank key noted in the lot description is not shown.

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

Terms in this record

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