Skip to content
The Encyclopedia of Horology

Pocket watch · Open-face keyless wind pocket watch

Zenith 18K gold extra-thin open face pocket watch

Partially verified

This open face keyless wind pocket watch by Zenith is catalogued by Bonhams Cornette de Saint Cyr as dating to circa 1960. The watch is constructed in an 18K yellow gold round case with brushed and polished finishing, measuring 41 mm in diameter, with a reported total weight of 33.66 grams. The silvered dial features applied baton hour markers, baton hands, an applied star above the Zenith signature, and 'SWISS MADE' at the bottom perimeter. Bonhams reports that the watch is powered by a jewelled manual wind movement and is signed across the case, dial, and movement.

Front view of the open face Zenith pocket watch showing the silvered dial, gold case, and bow
Front view of the open face Zenith pocket watch showing the silvered dial, gold case, and bow — Bonhams Cornette de Saint Cyr. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.bonhams.com
Category
Pocket watch · Open-face keyless wind pocket watch
Maker / attribution
Zenith
Reference
Not recorded
Catalogue / lot identifier
20
Source-reported date
Circa 1960
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 and External Construction

The timepiece is presented in a round 18K yellow gold (750) case described as having a brushed and polished finish. It measures 41 mm in diameter and has a recorded total weight of 33.66 grams.

External components include a fluted winding crown located at the 12 o'clock position, accompanied by an angular, rectangular-profile pendant bow.

Evidence for this section
  • “Case: Brushed and polished round”
  • “Size: 41mm”
  • “Weight: 33,66g”
  • “Angular, rectangular-profile bow positioned above the fluted crown at 12 o'clock”

Dial Configuration

The circular silvered dial is signed by Zenith and features applied gold-tone baton indices. The display utilizes slender gold-tone baton hands and lacks a seconds hand.

An applied star motif is visible above the Zenith signature. The words 'SWISS MADE' are printed across the lower perimeter below the 6 o'clock position.

Evidence for this section
  • “Dial: Silvered, signed”
  • “Slender gold-tone baton hands without a seconds hand”
  • “'SWISS MADE' printed across the lower edge below 6 o'clock”

Movement and Attribution

The watch is powered by a jewelled manual wind movement. Signatures are reported by the source to be present on the case, dial, and movement.

The piece is dated by the auction house to circa 1960. Specific caliber identifiers and internal markings are not specified in the source documentation.

Evidence for this section
  • “Movement: Jewelled manual wind”
  • “Signed: Case, dial & movement”
  • “Circa 1960”

Open research questions

  • What specific caliber manual wind movement is utilized in this reference?
  • Do the internal case back markings confirm the origin and gold fineness through Swiss hallmarks?
  • What is the significance of the applied star logo placement relative to Zenith branding variations circa 1960?

Source evidence

Recorded claims and source quotations for Zenith 18K gold extra-thin open face pocket watch
FieldSource-reported valueSource quotation
Case Material18K yellow gold (750)“en or jaune 18K (750)”
Case Diameter41mm“Size: 41mm”
Total Weight33,66g“Weight: 33,66g”
Movement TypeJewelled manual wind“Movement: Jewelled manual wind”
DialSilvered, signed“Dial: Silvered, signed”
SignaturesCase, dial & movement“Signed: Case, dial & movement”

Visible details

  • Slender gold-tone baton hands without a seconds hand
  • Applied gold-tone baton indices around a circular silvered dial
  • Angular, rectangular-profile bow positioned above the fluted crown at 12 o'clock
  • 'SWISS MADE' printed across the lower edge below 6 o'clock

Research qualifications

  • Movement caliber and internal case markings are neither visible in the photograph nor specified in the text.
  • Reverse of the case is not pictured.

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

Consulted source

Bonhams Cornette de Saint Cyr : Zenith. A fine 18K gold extra-thin open face keyless wind pocket watch Zenith. Montre de gousset extra plate à cadran ouvert en or jaune 18K (750) remontoir au pendant Circa 1960

Reviewed 2026-10-21 · Record 0b1b4468ed

Terms in this record

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