
Pocket Watches · Pocket watch
International Watch Co. pocket watch, IWC Pocket Watch, circa 1905
- Maker / attribution
- International Watch Co. (brand / maker)
- Date
- c. 1905
- Historical period
- Golden Age of Mechanical Watchmaking (1900 – 1945)
- Country of origin
- Switzerland
- Object type
- Pocket watch
- Materials / technique
- 14k gold
- Dimensions
- diameter 50 mm
- Auction house
- Antiquorum auction archive, Geneva
- Lot
- Lot 379-36
- Credit line
- Auction lot record: LOT 36, Hong Kong September 18th, 2025
- Catalogue title (original)
- INTERNATIONAL WATCH CO., SWITZERLAND, IWC POCKET WATCH, 14K YELLOW GOLD (English)
View the source record (auction lot) ↗ (opens another website in a new tab)Suggest a correction
Record summary
Catalogued by Antiquorum auction archive, Geneva (lot Lot 379-36), this is a pocket watch by International Watch Co., made in Switzerland, dated c. 1905. The Atlas places it in the Golden Age of Mechanical Watchmaking period (1900 – 1945) of its Pocket Watches collection. Materials and techniques recorded by the source: 14k gold. Recorded dimensions: diameter 50 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
Antiquorum catalogue description
A very fine, 14k gold, manual wind hunting-cased keyless pocket watch with enamel dial, gold hands.
Lot specifications (Antiquorum)
Movement No.: 314365; Case No.: 352233; Caliber: 18’’’, ¾ plate, gilded brass, going barrel, gold screwed-chatons (setting), straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index-regulator with swan-neck spring and micrometric screw.; Diameter: 50 mm.; Weight: 86 gr.; Signature: Dial, case and movement; Accessories: Original box
Inscriptions & marks
Dial, case and movement
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
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.
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