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The Encyclopedia of Horology

Pocket watch · Open-face pocket watch

Cyma open face pocket watch with chain

Partially verified

This open face pocket watch is attributed to Cyma and dated circa 1920 by Bonhams. Described as featuring a gold-plated case with a keyless-wind mechanism, the watch is accompanied by an open-link watch chain described as 9K gold, equipped with a T-bar and two faceted drop fobs. The dial shows italic Arabic numerals, blued steel hands, and a subsidiary seconds register at 6 o'clock.

Dial view of the Cyma open face pocket watch alongside the accompanying chain and faceted fobs
Dial view of the Cyma open face pocket watch alongside the accompanying chain and faceted fobs — Bonhams. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.bonhams.com
Category
Pocket watch · Open-face pocket watch
Maker / attribution
Cyma
Reference
Not recorded
Catalogue / lot identifier
84
Source-reported date
Circa 1920
Source-reported place
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

Identity and Classification

Catalogued under lot 84, this open-face pocket watch is attributed to the maker Cyma and assigned an approximate date of circa 1920 by Bonhams. It is accompanied by a watch chain described in the sale title as 9K gold.

The auction title lists the timepiece as a keyless-wind model housed in a gold-plated case. Reference numbers, movement caliber designations, and case serial numbers are not recorded in this source.

Evidence for this section
  • “Cyma. A gold plated keyless wind open face pocket watch with a 9K gold chain Circa 1920”
  • “Lot 84”

Dial and Case Configuration

Visual observation indicates a light-toned dial featuring stylized italic Arabic numerals and an outer minute track. Time is displayed with blued steel hands, accompanied by a small subsidiary seconds dial at the 6 o'clock position.

The timepiece presents a gold-toned open-face case fitted with a round bow and a top-winding crown at 12 o'clock.

Evidence for this section
  • “Light-toned dial featuring stylized italic Arabic numerals and outer minute track.”
  • “Blued steel hands with a small subsidiary seconds dial at the 6 o'clock position.”
  • “Gold-toned case with a round bow and top-winding crown at 12 o'clock.”

Accompanying Chain and Fobs

The watch is accompanied by a curb-link watch chain described in the source as 9K gold. Visual observation notes that the chain is fitted with swivel clasps and a central T-bar.

Also attached to the chain assembly are two faceted transparent yellow fobs, one oval in form and the other teardrop-shaped. Specific mineralogical identity, weights, or hallmarks for the fobs are not documented in the listing.

Evidence for this section
  • “with a 9K gold chain”
  • “Accompanying curb-link watch chain fitted with swivel clasps, a central T-bar, and two faceted transparent yellow fobs (one oval, one teardrop shape).”

Movement and Documentation Limits

The auction record describes the watch as featuring a keyless-wind mechanism. The movement itself is not shown in the primary photograph, and caliber information, jewel counts, or movement engravings are not recorded in this excerpt.

Dimensions for the case and chain are not specified in the auction text. Internal condition, mechanical functionality, and exact purity stamps are not documented in the source extract.

Evidence for this section
  • “Cyma. A gold plated keyless wind open face pocket watch with a 9K gold chain Circa 1920”
  • “Circa 1920”

Open research questions

  • What specific Cyma movement caliber is fitted within the case, and what serial numbers are stamped on it?
  • What are the physical dimensions and diameter of the gold-plated case?
  • What are the assay hallmarks, total weight, and specific material identity of the two faceted yellow fobs attached to the 9K gold chain?

Source evidence

Recorded claims and source quotations for Cyma open face pocket watch with chain
FieldSource-reported valueSource quotation
MakerCyma“Cyma. A gold plated keyless wind open face pocket watch”
Case PlatingGold plated“A gold plated keyless wind open face pocket watch”
Chain Material9K gold“with a 9K gold chain”
DateCirca 1920“Circa 1920”
Lot Number84“Lot 84”

Visible details

  • Light-toned dial featuring stylized italic Arabic numerals and outer minute track.
  • Blued steel hands with a small subsidiary seconds dial at the 6 o'clock position.
  • Gold-toned case with a round bow and top-winding crown at 12 o'clock.
  • Accompanying curb-link watch chain fitted with swivel clasps, a central T-bar, and two faceted transparent yellow fobs (one oval, one teardrop shape).

Research qualifications

  • The movement is not visible in the provided photograph, and specific movement inscriptions cited previously are unverified in this source extract.
  • Case dimensions and movement caliber details are not specified in the excerpt.

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

Consulted source

Bonhams : Cyma. A gold plated keyless wind open face pocket watch with a 9K gold chain Circa 1920

Reviewed 2026-10-21 · Record 51266093ba

Terms in this record

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

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