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The Encyclopedia of Horology

Movement record · Austria and later Germany

Vienna regulator movement

Partially verified

A light, finely finished weight-driven movement between rectangular plates, designed to run on very little power in a slim glazed wall case, with high-grade examples approaching precision-regulator standards.

Technical specifications

Diameter
Rectangular plates rather than a circular calibre
Height
Narrow, built to hang within a slim glazed case
Jewels
Generally unjewelled; the finest examples jewelled at the escapement
Frequency
Pendulum-regulated; seconds-beating on the best examples
Power reserve
Eight days, or a month on longer-duration examples
Winding
Weight driven, wound by pulling or by key depending on the arrangement
Setting
Hands set at the dial
Escapement
Deadbeat, with high-grade examples having jewelled pallets
Balance
Wooden or steel pendulum rod, frequently with rate adjustment at the rating nut
Complications
Striking on a gong on many examples, Seconds indication on precision examples

Identification features

  • Rectangular plates with slender wheelwork and very light weights
  • Grande sonnerie, striking and timepiece-only versions all exist and must be distinguished
  • Earlier Austrian work is generally lighter and more finely made than later German production

Known variants

  • Laterndluhr and Dachluhr case forms
  • Month-going examples
  • Later mass-produced German versions

Servicing notes

These movements run on so little power that any wear, thickened oil or out-of-beat pendulum stops them; cleaning and correct beat setting solve most complaints, and the weight lines must be checked before hanging.

General guidance only. Antique movements should be serviced by a qualified watchmaker.

Historical significance

The Austrian answer to the English regulator, and the form in which precision wall timekeeping reached ordinary households in central Europe.

Diagram

plates and going traincrutch pinpendulum bobweight line
Schematic: pendulum clock movement. An outline schematic drawn to show the arrangement of the parts discussed here. It is not a dimensioned working drawing and does not depict a particular maker's calibre.

Sources & references

  1. Museum collection records for Austrian wall regulators
  2. Attribution of unsigned Vienna regulator movements to individual makers is rarely secure.

Where sources disagree, the disagreement is stated rather than resolved silently.