
Pocket Watches · Watch; duplex escapement
Pocket watch by William Ilbery, England, 1801-1900
- Maker / attribution
- William Ilbery (maker)
- Date
- 1801-1900
- Historical period
- Industrial Revolution (1850 – 1900)
- Country of origin
- England
- Place
- London, Greater London, England, United Kingdom, London
- Object type
- Watch; duplex escapement
- Dimensions
- overall: 75 mm x 60 mm x 22 mm,
- Holding institution
- Science Museum Group, London
- Accession / object no.
- L2015-3594
- Credit line
- Lent by the Worshipful Company of Clockmakers
- Catalogue title (original)
- Watch for the Chinese export market by William Ilbery
Record summary
Held and catalogued by Science Museum Group, London (object number L2015-3594), this is a watch; duplex escapement by William Ilbery, made in London, Greater London, England, United Kingdom, London, dated 1801-1900. The Atlas places it in the Industrial Revolution period (1850 – 1900) of its Pocket Watches collection. Recorded dimensions: overall: 75 mm x 60 mm x 22 mm. 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
Watches for the Chinese and Ottoman markets
From the late eighteenth century English and Swiss makers produced watches specifically for export to China and the Ottoman Empire. For China, Fleurier houses such as Bovet, Juvet and Vrard made matching pairs of watches with richly engraved and decorated movements, often with the duplex escapement whose centre seconds hand jumps in full seconds. For Ottoman buyers, London makers such as George Prior and Markwick Markham supplied verge watches with Turkish numerals in triple or quadruple cases of tortoiseshell and silver.
These watches reflect global trade networks and the tastes of distant markets, and are important evidence for cross-cultural exchange in horology.
What to look for
- Engraved, fully decorated movements visible under a glass back.
- Duplex escapement with a jumping centre seconds hand.
- Chinese characters on the movement (e.g. the maker's name in transliteration).
- Turkish (Ottoman) numerals on the dial and multiple protective outer cases.
Dating clues
- Chinese-market Fleurier watches: c. 1820–1900.
- English Ottoman-market watches: c. 1770–1850.
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:Verge escapement
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