Pocket Watches · Watch; lever movement
Pocket watch, Switzerland, 1935
- Maker / attribution
- Unrecorded in source
- Date
- 1935
- Historical period
- Golden Age of Mechanical Watchmaking (1900 – 1945)
- Country of origin
- Switzerland
- Place
- Switzerland, Switzerland
- Object type
- Watch; lever movement
- Holding institution
- Science Museum Group, London
- Accession / object no.
- L2015-3405
- Credit line
- Lent by the Worshipful Company of Clockmakers
- Catalogue title (original)
- Split-seconds chronograph
Record summary
Held and catalogued by Science Museum Group, London (object number L2015-3405), this is a watch; lever movement, made in Switzerland, Switzerland, dated 1935. The Atlas places it in the Golden Age of Mechanical Watchmaking period (1900 – 1945) 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
Golden Age of Mechanical Watchmaking (1900 – 1945)
The wristwatch displaces the pocket watch; waterproof cases, self-winding and grand complications.
The pocket watch reached technical maturity and then began to give way to the wristwatch after the First World War. Complicated watches for collectors such as Henry Graves Jr. and James Ward Packard, railroad watches, and slim Art Deco dress watches are characteristic.
Read the period in the timelineMore pocket watches from this periodEarlier: Industrial Revolution
Atlas type guide
Chronographs and split-seconds watches
A chronograph is a watch with an additional seconds hand that can be started, stopped and returned to zero independently of the timekeeping. Louis Moinet built an early example in 1816 and Nicolas Rieussec a recording 'chronographe' in 1821; Adolphe Nicole's heart-shaped reset cam (patented 1862) made the modern return-to-zero possible. Split-seconds (rattrapante) chronographs add a second hand that can be stopped for intermediate times; flyback chronographs restart instantly.
Chronographs were essential tools for doctors (pulsometer scales), artillery (telemeter), engineers and sport. In wristwatches, Valjoux, Venus, Lemania and later the automatic chronographs of 1969 (Zenith El Primero, the Chronomatic Calibre 11 group and Seiko 6139) are milestones.
What to look for
- Push-pieces on the case band or a single button in the crown (monopusher).
- Subsidiary registers for minutes and hours; tachymeter, telemeter or pulsometer scales.
- Column wheel versus cam control visible in the movement.
- Calibre markings of specialist makers (Valjoux, Lemania, Venus, Landeron).
Dating clues
- Pocket chronographs with heart cam reset: after 1862.
- Wrist chronographs: from c. 1910; two-button designs from the 1930s.
- Automatic chronographs: from 1969.
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:Flyback chronographChronograph
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