
Pocket Watches · Watch; pivoted detent escapement
Pocket watch by Girard, Perregaux, Switzerland, 1879
- Maker / attribution
- Girard, Perregaux (maker)
- Date
- 1879
- Historical period
- Industrial Revolution (1850 – 1900)
- Country of origin
- Switzerland
- Place
- Switzerland, Switzerland
- Object type
- Watch; pivoted detent escapement
- Holding institution
- Science Museum Group, London
- Accession / object no.
- L2015-3363
- Credit line
- Lent by the Worshipful Company of Clockmakers
- Catalogue title (original)
- Gold watch with tourbillon by Girard Perregaux
Record summary
Held and catalogued by Science Museum Group, London (object number L2015-3363), this is a watch; pivoted detent escapement by Girard, Perregaux, made in Switzerland, Switzerland, dated 1879. The Atlas places it in the Industrial Revolution period (1850 – 1900) of its Pocket Watches collection. The record is illustrated with 3 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
The source record does not include a narrative description. The structured fields above are reproduced from it.
Historical context
Industrial Revolution (1850 – 1900)
American interchangeable-parts manufacture; railroad time standards; Swiss and German factory systems.
Machine production with interchangeable parts, pioneered by Waltham (1850s) and adopted by Elgin, Longines, Omega and others, made reliable lever watches widely affordable. Keyless winding became standard, railroad watch standards were introduced (1890s), and Swiss and American industries competed globally.
Read the period in the timelineMore pocket watches from this periodEarlier: Precision & Scientific Horology
Atlas type guide
Pocket chronometers and precision watches
A pocket chronometer is a watch built to observatory standards, traditionally with a detent escapement like a marine chronometer. English makers such as John Arnold and Thomas Earnshaw made the first pocket chronometers in the 1780s. In the nineteenth century the term increasingly referred to any watch that had passed official rating trials at observatories in Kew, Neuchâtel, Geneva or Besançon, and the Swiss lever chronometer became dominant.
Tourbillon and karrusel watches belong to the same world of precision. Breguet patented the tourbillon in 1801 to average out positional errors; Bahne Bonniksen's karrusel (1892) was a cheaper English alternative. Rating certificates (bulletins de marche) that accompany such watches are historical documents in their own right.
What to look for
- Detent escapement (no pallets; a fine spring detent locks the escape wheel).
- Observatory certificates, competition results or 'Chronometer' marking on the dial.
- Tourbillon carriage visible through an aperture or on the movement.
- Fine finishing: jewelled holes in gold chatons, diamond endstones.
Dating clues
- English pocket chronometers: c. 1780–1900.
- Observatory trials at Neuchâtel from 1866, Geneva from 1873, Kew from 1884.
- Karrusels: 1892–c. 1915.
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:Detached lever escapement
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