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The Encyclopedia of Horology

Pocket watch · Pocket chronometer

Dent 18K Gold Pocket Chronometer with Original Box

Partially verified

This mid-nineteenth-century open-face pocket chronometer is signed by Dent, London, and numbered 29216. Housed in a solid 18K gold case bearing London hallmarks for 1863 and the maker's mark JWS, the watch is powered by a key-wound gilt fusee movement featuring a detent escapement, a free-sprung balance with large gold timing weights, and a helical hairspring. The white enamel dial is configured with Roman numerals, blued steel hands, and a subsidiary seconds dial at 6 o'clock. It is preserved in its brass-bound three-tiered wooden box containing a bone disc numbered 29216.

Front view of the Dent pocket chronometer resting in its fitted wooden deck box with key
Front view of the Dent pocket chronometer resting in its fitted wooden deck box with key — Atlam Watches. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.atlam-watches.co.uk
Category
Pocket watch · Pocket chronometer
Maker / attribution
Dent
Reference
Not recorded
Catalogue / lot identifier
5.35
Source-reported date
circa 1863
Country
United Kingdom
Source-reported serial
29216

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Dial and Visible Presentation

The pocket chronometer features a white enamel dial with black Roman hour numerals, an outer minute track, and blued steel hands, along with a subsidiary seconds dial positioned at 6 o'clock. The dial is signed "Dent, 61 Strand, London, 29216". The watch is fitted with a mineral glass crystal and is presented seated in the circular recess of its fitted wooden box with its winding key.

A condition issue reported by the vendor on the enamel dial is a hairline crack extending from the 11 o'clock numeral toward the center.

Evidence for this section
  • “White enamel dial with black Roman numerals and an outer minute track.”
  • “Subsidiary seconds dial positioned at the 6 o'clock location with a blued steel hand.”
  • “the white enamel dial has a full set of blue steel hands and is signed “Dent, 61 Strand, London, 29216””
  • “there is a hairline from the 11 to the centre. The watch has a mineral glass”

Case Construction and Hallmarks

The timepiece is housed in an open-face solid 18K gold case measuring 49 mm in diameter and 14 mm thick. The case structure is described as having stepped sides, light engine turning on the back, and hinged front, back, and inner covers.

The case is reported to bear London hallmarks for 1863, the maker's initials JWS, and the serial number 29216 matching the movement and dial. The interior case marks and case back are not shown in the primary photograph.

Evidence for this section
  • “solid 18K gold case with hallmarks for London 1863”
  • “The case has stepped sides and light engine turning on the back.”
  • “makers initials for JWS and is numbered 29216”
  • “The watch measures 49mm wide x 14mm”

Reported Movement and Escapement

Although the movement is not visible in the provided image, it is described as a key-wound and key-set gilt fusee chronometer movement. The mechanism is reported to feature a detent escapement, a free-sprung balance with a helical hairspring, and large gold timing weights on the balance.

The movement plate is reported to be engraved "Dent, Watchmaker to the Queen, Strand, London" and numbered 29216. A surface scratch across the word "London" is documented by the seller.

Evidence for this section
  • “gilt fusee pocket watch movement has a free sprung balance with a helical hairspring and a detent escapement”
  • “large gold timing weights on the balance”
  • “signed “Dent, Watchmaker to the Queen, Strand, London” # 29216”
  • “one scratch on the “London””

Deck Box, Packaging, and Ephemera

The watch is housed in a brass-bound three-tier wooden box measuring 103 mm by 85 mm by 52 mm, featuring a removable insert and a turned dimple in the wood inside the second-tier lid to accommodate the stem. An inlaid bone disc on the box is inscribed "Dent, 29216".

The vendor notes accompanying provenance material, including a bill of sale on the base of the wooden box dated 1863 made out to a Mr. A. G. Johnson, as well as an outer cardboard box from the retailer Hamilton & Co, Calcutta.

Evidence for this section
  • “three tiered wooden box bound with brass and with a bone insert”
  • “The box measures 103mm x 85mm x 52mm”
  • “bone disc with “Dent, 29216””
  • “bill of sale on the base dated 1863 and to a Mr A G Johnson”
  • “original cardboard outer box from the original retailer, Hamilton & Co, Calcutta”

Open research questions

  • Which London silversmith or casemaker is identified by the initials 'JWS' in London hallmark registries circa 1863?
  • Do records of Hamilton & Co. in Calcutta corroborate the sale or transfer of Dent chronometer number 29216 to Mr. A. G. Johnson?
  • What internal architecture does the detent escapement utilize (e.g., spring detent vs. pivoted detent) upon movement uncasing?

Source evidence

Recorded claims and source quotations for Dent 18K Gold Pocket Chronometer with Original Box
FieldSource-reported valueSource quotation
Maker's signature on dialDent, 61 Strand, London, 29216“signed “Dent, 61 Strand, London, 29216””
Case material and hallmarksSolid 18K gold hallmarked London 1863“solid 18K gold case with hallmarks for London 1863”
Escapement typeDetent chronometer escapement“free sprung balance with a helical hairspring and a detent escapement”
Case maker markJWS“makers initials for JWS”
Dimensions49 mm wide by 14 mm thick“measures 49mm wide x 14mm”
Box dimensions103 mm x 85 mm x 52 mm“The box measures 103mm x 85mm x 52mm”
Movement signatureDent, Watchmaker to the Queen, Strand, London # 29216“signed “Dent, Watchmaker to the Queen, Strand, London” # 29216”
Retailer on outer boxHamilton & Co, Calcutta“Hamilton & Co, Calcutta”

Visible details

  • White enamel dial with black Roman numerals and an outer minute track.
  • Subsidiary seconds dial positioned at the 6 o'clock location with a blued steel hand.
  • Open-face gold case fitted inside an open wooden deck or transport box with top circular recess and key compartment.
  • Winding key rests in the upper lined recess behind the bow.

Research qualifications

  • Movement and interior case hallmarks are not pictured in the provided view.
  • The source reports a hairline fracture on the enamel dial extending from 11 o'clock toward the center.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Rare 18K gold cased Chronometer by Dent with original box c1863

Reviewed 2026-10-21 · Record 6e4e1a6d02