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The Encyclopedia of Horology

Wristwatch · Manual-wind wristwatch

Zenith 9K Gold Manual Wind Watch, Ref. 11412

Partially verified

This Zenith 9K gold manual wind wristwatch, reference 11412, bears a Birmingham hallmark dated to 1939. Measuring 28mm across, the polished tonneau-form case is stamped A.L.D. and numbered 666939. According to the auctioneer, it houses a jewelled Zenith Calibre 106 manual wind movement, numbered 3225847. The silvered dial features black Arabic numerals, an outer minute track, blued steel Breguet-style hands, and a subsidiary seconds dial at the 6 o'clock position. Both the dial and movement are reported signed by Zenith.

Front view of the Zenith 9K gold tonneau-form wristwatch case and dial
Front view of the Zenith 9K gold tonneau-form wristwatch case and dial — Bonhams. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.bonhams.com
Category
Wristwatch · Manual-wind wristwatch
Maker / attribution
Zenith
Reference
11412
Catalogue / lot identifier
116
Source-reported date
1939
Country
United Kingdom
Source-reported serial
3225847

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 Hallmarking

The watch features a tonneau-form case in 9K yellow gold, measuring 28mm across. The auction catalog records the case as polished, stamped 'A.L.D.', and numbered 666939. Visual observation reveals integral slotted strap bars formed at the case lugs and a fluted winding crown situated at the 3 o'clock position.

The auctioneer dates the case via an English assay mark, described as 'Birmingham Hallmark for 1939'. As the interior case back is not visible in the provided photograph, the specific assay punches and internal stamps remain unverified by direct visual inspection.

Evidence for this section
  • “Polished tonneau form, No.666939, stamped A.L.D.”
  • “Size: 28mm”
  • “Birmingham Hallmark for 1939”
  • “Tonneau-form yellow gold case with integral slotted strap bars”
  • “Fluted winding crown at the 3 o'clock position”

Dial and Hands

The watch is fitted with a silvered dial bordered by an outer minute track and marked with black Arabic numerals. Time is displayed via blued steel Breguet-style hands, along with a subsidiary seconds register at 6 o'clock featuring a matching blued sub-seconds hand and fine track markings.

Direct visual inspection shows visible patination and spotting across the silvered dial surface. The dial is printed with the Zenith brand name below the 12 o'clock numeral.

Evidence for this section
  • “Dial: Silvered”
  • “Silvered dial with blued steel Breguet-style hands and blued sub-seconds hand”
  • “Subsidiary seconds register at 6 o'clock with fine track markings”
  • “Visible patination and spotting across the dial surface”

Movement and Technical Specifications

Internally, the timepiece is documented as housing a manual-wind movement, catalogued as 'Jewelled Cal.106, No.3225847'. Bonhams notes that both the dial and movement are signed.

Because no photograph of the uncased movement is provided in the source listing, the calibre's layout, finishing, exact jewel count, and mechanical running condition are not recorded.

Evidence for this section
  • “Movement: Jewelled Cal.106, No.3225847”
  • “Signed: Dial & movement”

Open research questions

  • Does the 'A.L.D.' stamp correspond to the English case manufacturer Dennison Watch Case Co. (Aaron Lufkin Dennison)?
  • What specific date letter punch represents the 1939 Birmingham hallmark inside the case back?
  • What is the mechanical condition and exact jewel count of the Calibre 106 movement?

Source evidence

Recorded claims and source quotations for Zenith 9K Gold Manual Wind Watch, Ref. 11412
FieldSource-reported valueSource quotation
Reference11412“Reference: 11412”
Date / HallmarkBirmingham Hallmark for 1939“Birmingham Hallmark for 1939”
MovementJewelled Cal.106, No.3225847“Jewelled Cal.106, No.3225847”
CasePolished tonneau form, No.666939, stamped A.L.D.“Polished tonneau form, No.666939, stamped A.L.D.”
Size28mm“Size: 28mm”
Case Number666939“Polished tonneau form, No.666939, stamped A.L.D.”
Case StampA.L.D.“stamped A.L.D.”
Sale Result£640 inc. premium“Sold for £640 inc. premium”

Visible details

  • Tonneau-form yellow gold case with integral slotted strap bars
  • Silvered dial with blued steel Breguet-style hands and blued sub-seconds hand
  • Subsidiary seconds register at 6 o'clock with fine track markings
  • Visible patination and spotting across the dial surface
  • Fluted winding crown at the 3 o'clock position

Research qualifications

  • No strap or bracelet is present in the photograph
  • Movement and interior case hallmarks are not visible in the supplied photograph

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

Consulted source

Bonhams : Zenith. A 9K gold manual wind watch Ref: 11412, Birmingham Hallmark for 1939

Reviewed 2026-10-21 · Record 099ff67d65

Terms in this record

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

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