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The Encyclopedia of Horology

Pocket watch · Chronograph pocket watch

Agassiz Chronograph 14K Yellow Gold Pocket Watch

Partially verified

This pocket watch is attributed by the seller to Swiss maker Agassiz and dated broadly to the 20th century. The piece features a manual-wind movement inside a 14-karat yellow gold case measuring 52 mm in diameter. According to the seller's description, it features a white dial with Arabic numerals and a subsidiary dial at the 6 o'clock position. The closed exterior case cover displays an engraved interlocking script monogram.

Front view of the closed 14K yellow gold case displaying an engraved monogram
Front view of the closed 14K yellow gold case displaying an engraved monogram — Watch Museum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
watchmuseum.org
Category
Pocket watch · Chronograph pocket watch
Maker / attribution
Agassiz
Reference
Not recorded
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
20th Century
Country
Switzerland

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 Construction and Exterior Ornamentation

The pocket watch is housed in a polished 14-karat yellow gold case reported by the source to measure 52 mm in diameter. Visible physical features show a hinged case construction with a hinge knuckle visible along the lower rim, and a pendant fitted with a fluted winding crown and a circular suspension bow.

The exterior lid of the closed case is decorated with an elaborately engraved interlocking script monogram. The vendor notes that the case is engraved with initials, though the individual characters are not specified in the listing.

Evidence for this section
  • “14K yellow gold case”
  • “measuring 52mm”
  • “case ​is engraved with initials”
  • “Fluted winding crown mounted at the pendant with a circular suspension bow”
  • “Elaborately engraved interlocking script monogram across the case lid”
  • “Hinged outer case construction with hinge knuckle visible along the lower rim”
  • “Polished yellow gold case exterior”

Reported Movement and Chronograph Functionality

The vendor lists the timepiece as a manual-wind watch originating from Switzerland and titles it as an Agassiz chronograph. However, because the movement is not visible in the provided imagery, its specific caliber, jewel count, layout, and internal marks cannot be confirmed.

While catalogued as a chronograph, the operational controls for this complication are not verified by visible features on the single closed-case image. Technical details and function remain solely as reported by the source.

Evidence for this section
  • “Movement: Manual Wind”
  • “Place of Origin: Switzerland”
  • “Agassiz Chronograph 14K Yellow Gold Pocket Watch”

Reported Dial Features and Source Details

According to the source description, the timepiece has a white dial featuring Arabic numerals and a sub-dial positioned at 6 o'clock. As the dial is concealed in the closed-case photograph, these visual elements are not independently verifiable.

The source dates the watch broadly to the 20th century while listing the exact date of manufacture as unknown. The maker is identified in metadata as 'Aggasiz' and in text as 'Agassiz', and the listing notes that the watch is presented in a custom box.

Evidence for this section
  • “white dial, adorned with ‍Arabic numerals and complemented by a ​sub-dial at the 6 o'clock position”
  • “Period: 20th Century”
  • “Date of Manufacture: Unknown”
  • “Creator: Aggasiz”
  • “Presented‌ in a custom box”

Open research questions

  • What specific letters make up the monogram engraved on the front cover?
  • What are the internal case markings, hallmarks, and serial numbers inside the case back and cuvette?
  • What movement caliber powers the watch, and how is the chronograph mechanism configured?

Source evidence

Recorded claims and source quotations for Agassiz Chronograph 14K Yellow Gold Pocket Watch
FieldSource-reported valueSource quotation
MakerAggasiz“Creator: Aggasiz”
Movement typeManual Wind“Movement: Manual Wind”
Place of originSwitzerland“Place of Origin: Switzerland”
Period20th Century“Period: 20th Century”
Case material14K yellow gold“14K yellow gold case”
Case diameter52mm“measuring 52mm”
Reported conditionGood“Condition: Good”
PackagingCustom box“Presented‌ in a custom box”

Visible details

  • Fluted winding crown mounted at the pendant with a circular suspension bow
  • Elaborately engraved interlocking script monogram across the case lid
  • Hinged outer case construction with hinge knuckle visible along the lower rim
  • Polished yellow gold case exterior

Research qualifications

  • The dial, movement, and interior hallmarks are not visible in the provided photograph
  • Chronograph functions and dial layout are source-reported and cannot be independently confirmed from the closed case image
  • The source notes the exact date of manufacture is unknown

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

Consulted source

Agassiz Chronograph 14K Yellow Gold Pocket Watch - 20th Century » Watch Museum: Discover The World Of Antique & Vintage Pocket Watches

Reviewed 2026-10-21 · Record d23276d6c5

Terms in this record

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

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