
Movements & Components · Pocket watch movement
Pocket watch movement by William Gib, Netherlands, 1730
- Maker / attribution
- William Gib (Maker)
- Date
- 1730
- Historical period
- Early Modern Horology (1600 – 1750)
- Country of origin
- Netherlands
- Place
- Nederland, Rotterdam
- Object type
- Pocket watch movement
- Materials / technique
- Material: gold Material: brass Material: steel Material: enamel Material: copper
- Dimensions
- 2.8cm dp 4.4cm dm
- Holding institution
- Museum Rotterdam
- Accession / object no.
- 5874
- Credit line
- Museum Rotterdam
- Catalogue title (original)
- Binnenwerk van zakhorloge met wit-emaille wijzerplaat en gouden wijzer en ajourgezaagde kloof (Dutch)
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Record summary
Held and catalogued by Museum Rotterdam (object number 5874), this is a pocket watch movement by William Gib, made in Nederland, Rotterdam, Netherlands, dated 1730. The Atlas places it in the Early Modern Horology period (1600 – 1750) of its Movements & Components collection. Materials and techniques recorded by the source: Material: gold Material: brass Material: steel Material: enamel Material: copper. Recorded dimensions: 2.8cm dp 4.4cm dm. 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
Catalogue description from Museum Rotterdam
Zakhorloge met witte email wijzerplaat met op de binnenrand romeinse uurcijfers en op de buitenrand arabische minuutcijfers. Het uurwerk met spillegang en snek. Waaiervormige pilaren, aan de bovenzijde ajourgezaagd. Ajourgezaagde stuiting voor de snek. Op de achterplatine een zilveren ajourgezaagde brug die de balans volledig afdekt. Naast de kloof een vierkante geblauwde stift voor de regulage in een eigen zilveren afstelplaat. Rond de signatuur een ajourgezaagd floraal ornament.
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 An editor-reviewed English translation has not yet been published; we do not publish machine translations as authoritative text.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
Early Modern Horology (1600 – 1750)
Huygens' pendulum and balance spring transform accuracy; English makers develop the anchor and deadbeat escapements.
The pendulum, anchor escapement and balance spring transformed movement design; English makers introduced jewelled bearings (1704).
Read the period in the timelineMore movements & components from this periodEarlier: Renaissance Horology
Atlas type guide
Clock and watch movements
The movement is the mechanism of a clock or watch, without its case and dial. It consists of the power source (weight or mainspring in its barrel, sometimes with a fusee), the going train of wheels and pinions, the escapement and oscillator, the motion work that drives the hands, and in many cases additional trains for striking or complications.
From the eighteenth century watch movements were increasingly produced in stages: Swiss and French ébauche makers supplied rough movements that finishers, repasseurs and retailers completed and signed. Calibre numbers — first used systematically by American and Swiss factories in the nineteenth century — make it possible to identify movements, find spare parts and date watches.
What to look for
- Plate and bridge layout: full plate, three-quarter plate, Lépine bar calibre, bridges and cocks.
- Jewel count and whether jewels are set in chatons or rubbed in.
- Signatures, calibre and serial numbers on the plate or under the dial.
- Finishing: Geneva stripes (Côtes de Genève), perlage, bevelled edges, blued screws.
- Fusee and chain, going barrel, or electrical components.
Dating clues
- Full-plate English movements dominate before c. 1850; three-quarter plate and Lépine calibres after.
- Jewelled movements spread after Facio and Debaufre's patent of 1704, mainly in English work until c. 1800.
- Calibre numbers and factory serials allow close dating for industrial production after c. 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.
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