Clocks · Wall clock
Wall clock by G.A. Bröcker, Finland, 1848
- Maker / attribution
- G.A. Bröcker (maker)
- Date
- 1848
- Historical period
- Precision & Scientific Horology (1750 – 1850)
- Country of origin
- Finland
- Place
- Finland, Satakunta, Pori
- Object type
- Wall clock
- Materials / technique
- glass, metal, brass, wood
- Dimensions
- width: 53.5 cm; height: 164 cm; depth: 28 cm
- Holding institution
- Satakunnan Museo
- Accession / object no.
- SME17935:121
- Credit line
- Satakunnan Museo (via Finna)
- Catalogue title (original)
- kello; seinäkello (Finnish)
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Record summary
Held and catalogued by Satakunnan Museo (object number SME17935:121), this is a wall clock by G.A. Bröcker, made in Finland, Satakunta, Pori, dated 1848. The Atlas places it in the Precision & Scientific Horology period (1750 – 1850) of its Clocks collection. Materials and techniques recorded by the source: glass, metal, brass, wood. Recorded dimensions: width: 53.5 cm; height: 164 cm; depth: 28 cm. The record is illustrated with 2 photographs.
Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.
Catalogue description
Description — Satakunnan Museo
fyysinen kuvaus: Seinäkello, jonka kaappi on ruskeaksi petsattua puuta. Sivuilla ja ylhäällä on mustat sorvatut puukoristeet. Yläpaneelin keskimmäinen puukoriste on vino. Sivuissa ja ovissa on lasit. Kellotaulu on suuri ja muodoltaan pyöreä. Se on hopeanväristä peltiä, jonka reunus on kullanvärinen. Osoittimet, numerot sekä teksti ovat mustat. Kellonaikojen lisäksi kellotauluun on merkitty viikonpäivät. Kello vedetään avaimella. Kellossa on myös heiluri, joka on valmistettu messingistä kuten puntitkin. Heilurin alaosa on pyöreä ja hieman kupera. Sen yläpuolella on lyyramainen kuvio.
Shown in the original language of the source catalogue. An editor-reviewed English translation has not yet been published; we do not publish machine translations as authoritative text.
Inscriptions & marks
merkintä: G.A. Bröcker. / Björneborg. / 1848, Kellotauluun painettu teksti, jossa on todennäköisesti valmistajan tiedot.
Historical context
Precision & Scientific Horology (1750 – 1850)
Harrison solves longitude; Mudge invents the lever; Breguet's Paris workshop defines the modern watch.
The age of the deadbeat escapement, compensated pendulums and observatory regulators. Domestic clocks spread through the middle classes: English longcase and bracket clocks, French gilt-bronze mantel clocks, Viennese Biedermeier wall clocks, Black Forest painted-shield clocks, and the first American shelf clocks.
Read the period in the timelineMore clocks from this periodEarlier: Early Modern Horology
Atlas type guide
Regulators, wall and Vienna clocks
A regulator is a precision pendulum clock used as a time standard in observatories, workshops and railway offices. Typical features are a deadbeat or Graham escapement, a temperature-compensated pendulum (mercury jar, gridiron or later invar), maintaining power and a regulator dial that separates hours, minutes and seconds. George Graham's deadbeat escapement (c. 1715) and his mercury pendulum, together with Harrison's gridiron, set the pattern for two centuries.
Wall clocks span a much wider range: the elegant Viennese Laterndluhr and Dachluhr of the Biedermeier period, the Dutch stoelklok and staartklok, English 'dial' clocks used in schools, offices and railway stations, and mass-produced spring and weight wall clocks from Germany (Gustav Becker, Junghans, Kienzle) and America.
What to look for
- Deadbeat escapement and compensated pendulum (gridiron rods, mercury jar or wood rod).
- A regulator dial with a large central minute hand and separate hour and seconds dials.
- Vienna regulators: glazed cases, slender pendulum, small weights, enamel two-piece dials.
- German factory trademarks stamped on the backplate (e.g. Gustav Becker anchor and crown, Junghans star).
Dating clues
- Graham-type deadbeat regulators: from c. 1720.
- Viennese Laterndluhr: c. 1800–1850.
- German factory 'Vienna-style' regulators: c. 1870–1930; Gustav Becker serial numbers allow close dating.
General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.
Read next:Deadbeat escapementAnchor (recoil) escapementGrasshopper escapement
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