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The Encyclopedia of Horology

Pocket watch · Half hunter pocket watch

Zenith 18ct Gold Half-Hunter Pocket Watch

Partially verified

This half-hunter pocket watch, dated to approximately 1925, is constructed with an 18-carat yellow gold case. The hinged outer cover features a blue enamel Roman numeral chapter ring surrounding a central glazed aperture, designed to reveal the dial's subsidiary seconds register. The inner dial is executed in white enamel with black Roman numerals, an outer minute track, and blued-steel spade hands. The timepiece is driven by a gilt, three-quarter plate Zenith movement, numbered 2502491, which includes a 17-jewel lever escapement marked as adjusted. Structural components include an onion-form winding crown and a ribbed gold bow. The watch has a total weight of 115.5 grams and is identified by case number 315060, along with various Swiss export hallmarks and the stamp ATD. The movement remains in functional condition.

Front view of the 18ct gold half-hunter pocket watch showing the blue enamel chapter ring and glazed aperture.
Front view of the 18ct gold half-hunter pocket watch showing the blue enamel chapter ring and glazed aperture. — Moorabool Auctions, via Invaluable. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
orbiscollectibles.com
Category
Pocket watch · Half hunter pocket watch
Maker / attribution
Zenith
Reference
Not recorded
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
c.1925
Source-reported place
Switzerland
Source-reported serial
315060

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

Case and Exterior Design

The watch is housed in a substantial, plain-polished 18-carat yellow gold case with a half-hunter configuration. A defining feature of the exterior is the hinged outer cover, which is finished with a blue enamel Roman numeral chapter ring.

The design incorporates a central glazed aperture that permits viewing of the subsidiary seconds register without the necessity of opening the watch cover. Additional exterior elements include a ribbed gold bow and an onion-form winding crown.

Evidence for this section
  • “substantial, plain-polished 18-carat yellow gold case”
  • “The hinged outer cover is designed with an engraved Roman numeral chapter ring, finished in blue enamel”
  • “central glazed aperture that allows the subsidiary seconds register on the dial to be viewed without opening the watch”
  • “ribbed gold bow and an onion-form winding crown”

Dial and Movement

The inner white enamel dial is configured with bold black Roman numerals and an outer minute track. The time is indicated by blued-steel spade hands, which match the aesthetic of the external chapter ring.

Internally, the timepiece is powered by a gilt, three-quarter plate Zenith movement. The movement carries the identification number 2502491 and features a 17-jewel lever escapement. The movement is marked as adjusted.

Evidence for this section
  • “inner white enamel dial displays bold black Roman numerals and an outer minute track, complemented by blued-steel spade hands”
  • “gilt, three-quarter plate Zenith movement, numbered 2502491”
  • “equipped with a 17-jewel lever escapement and marked as adjusted”

Identification and Marks

The watch is identified by case number 315060. The case is stamped with the marking ATD and includes a variety of Swiss export hallmarks. These markings, along with the total weight of 115.5 grams, are provided in the documentation.

The watch is categorized as dating to approximately 1925. The movement number 2502491 is recorded, and the watch is reported to maintain functional integrity.

Evidence for this section
  • “case number 315060”
  • “stamped with 18, ATD, and various Swiss export hallmarks”
  • “dated to approximately 1925”
  • “maintaining its functional integrity with a running movement”

Open research questions

  • What is the specific meaning of the 'ATD' stamp on the case?
  • Does the movement number correlate with specific production records for Zenith in 1925?

Source evidence

Recorded claims and source quotations for Zenith 18ct Gold Half-Hunter Pocket Watch
FieldSource-reported valueSource quotation
MakerZenith“Zenith”
Case Material18ct yellow gold“18ct yellow gold”
Movement Number2502491“numbered 2502491”
Case Number315060“case number 315060”
Weight115.5 grams“weighing a total of 115.5 grams inclusive of its components”
Movement17-jewel lever escapement“17-jewel lever escapement”

Visible details

  • Engraved Roman numeral chapter ring in blue enamel on the outer cover.
  • Onion-form winding crown with a ribbed gold bow.
  • Glazed central aperture on the front cover.
  • Blued-steel spade hands visible through the cover aperture.

Research qualifications

  • The watch's functional integrity is described as 'maintaining its functional integrity' but specific timing accuracy is not confirmed.
  • Export marks are noted generally without specific verification of individual assay stamps.

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

Consulted source

Zenith 18ct Gold Half-Hunter Pocket Watch, c. 1925

Reviewed 2026-11-02 · Record edc3337967

Terms in this record

Glossary explanations for terms named in this object’s record.

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