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Pocket Watches · Pocket watch

Pocket watch, 1790

DocumentedDocumented from the holding institution's catalogue record.
Maker / attribution
Unrecorded in source
Date
1790
Country of origin
Unrecorded in source
Object type
Pocket watch
Materials / technique
Material: brass Material: silver Material: steel Material: glass Material: enamel
Dimensions
6.8cm hg 5cm br 2cm dp
Holding institution
Museum Rotterdam
Accession / object no.
5876_A-D
Credit line
Museum Rotterdam
Catalogue title (original)
Zakhorloge met wit-emaille wijzerplaat en tweekleppige kast met opwindgat in wijzerplaat (Dutch)

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Record summary

Held and catalogued by Museum Rotterdam (object number 5876_A-D), this is a pocket watch, dated 1790. The Atlas places it in the Precision & Scientific Horology period (1750 – 1850) of its Pocket Watches collection. Materials and techniques recorded by the source: Material: brass Material: silver Material: steel Material: glass Material: enamel. Recorded dimensions: 6.8cm hg 5cm br 2cm dp. The record is illustrated with 1 photograph.

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

Catalogue description from Museum Rotterdam

Zakhorloge met witte email vlakke wijzerplaat met arabische cijfers. In tweekleppige kast met bol glas, vlakbolle achterklep en vlakke rand met doorlopend motief. Het uurwerk met spillegang, met snek. Gehoekte pilaren. Op de achterplatine een messing ajourgezaagde brug. Daarachter een driespakige balans. Naast de kloof een vierkante geblauwde stift voor de regulage in een zilveren gradenschijf met letters "R" en "A".

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 An editor-reviewed English translation has not yet been published; we do not publish machine translations as authoritative text.

Historical context

Precision & Scientific Horology (1750 – 1850)

Harrison solves longitude; Mudge invents the lever; Breguet's Paris workshop defines the modern watch.

From 1750 to 1850 the watch became a precision instrument. Mudge's lever escapement, the cylinder escapement, Lépine's thin bar calibre, Breguet's innovations (overcoil, tourbillon, perpétuelle) and the pocket chronometer of Arnold and Earnshaw all date from this period, while verge watches remained common in cheaper production.

Read the period in the timelineMore pocket watches from this periodEarlier: Early Modern Horology

Atlas type guide

Pocket watches

The pocket watch was the dominant personal timekeeper from the late seventeenth century until the First World War. Its development tracks the history of the escapement: verge watches with fusees until the late eighteenth century; Thomas Mudge's lever escapement (c. 1755) and the cylinder escapement popularised by George Graham and later by Swiss makers; and the Swiss and English lever watches of the nineteenth century. Lépine's bar-bridge calibre and keyless winding made watches thinner and easier to use.

Industrialisation transformed the trade: American factories such as Waltham (from 1850) and Elgin produced interchangeable parts by machine, and Swiss makers responded with their own mechanisation after the 1876 Philadelphia Exhibition. By 1900 a reliable watch was affordable to millions; the finest makers continued to produce complications and precision watches.

What to look for

  • The escapement: verge (crown wheel), cylinder, duplex, English or Swiss lever.
  • Key winding (a square arbor in dial or back) or keyless crown winding.
  • Signatures and serial numbers on the movement, dial and inside case back.
  • Hallmarks, case maker's marks and gold or silver standards stamped in the case.
  • Dial material: enamel, silver, gold, later printed metal.

Dating clues

  • Verge watches dominate before c. 1800; cylinder watches c. 1770–1900; lever watches after c. 1820.
  • Keyless winding: increasingly common after c. 1860.
  • Manufacturer serial number lists exist for Waltham, Elgin, Longines, Omega, Patek Philippe and others.

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 escapementDetached lever escapementFuseeIdentification Centre

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