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The Encyclopedia of Horology

Wristwatch · Dress watch

Audemars Piguet Automatic K2120 18K Yellow Gold Dress Watch

Partially verified

This gentleman's dress wristwatch by Audemars Piguet is dated by the seller to circa 1967 based on serial numbers. The circular case is fashioned in 18K solid yellow gold, measuring 32.5 mm in diameter, 37 mm lug-to-lug, and 7 mm in overall thickness including the crystal. According to the seller, it is powered by an automatic AP caliber K2120 full-rotor movement with 36 jewels and a solid 21K gold rotor, developed from the Jaeger-LeCoultre caliber 920. The dial has a pearl-tone finish with raised black markers, baton hands, and a script 'Automatic' signature, fitted with an 18 mm brown lizard strap.

Oblique view of the Audemars Piguet K2120 18K yellow gold dress watch on a stand
Oblique view of the Audemars Piguet K2120 18K yellow gold dress watch on a stand — empressissi. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
empress.cc
Category
Wristwatch · Dress watch
Maker / attribution
Audemars Piguet
Reference
Not recorded
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
ca. 1967
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 Physical Dimensions

The timepiece features an 18K solid yellow gold circular case described by the seller as having clear hallmarks and its original crown. Visible inspection shows polished surfaces, slender downturned lugs, and a partially recessed winding crown set into the case flank.

According to the source listing, the case measures 32.5 mm in diameter without the crown, 37 mm from lug tip to lug tip, and has an overall thickness of 7 mm inclusive of the crystal. It is fitted with an 18 mm genuine lizard leather strap.

Evidence for this section
  • “cased in a classic slim and elegant 18K solid yellow gold case in great shape with clear hallmarks and has the original crown and near mint crystal.”
  • “Polished circular yellow gold case with slender downturned lugs and a recessed winding crown”
  • “The overall thickness of this watch including the crystal is just 7mm.”
  • “This elegant AP watch measures 32.5mm round (without crown) and 37mm from top lug to bottom lug.”
  • “18mm wide brand new top quality hand made genuine lizard band”

Dial and Hands

The watch presents a light pearl-toned dial configured without a running seconds hand. Time is indicated by dark baton hands pointing to raised black baton hour markers around the periphery.

Dial text includes the upper signature 'AUDEMARS, PIGUET / GENEVE' positioned below the 12 o'clock marker, 'Automatic' rendered in cursive script above the 6 o'clock marker, and 'SWISS' at the bottom edge. The seller notes that the dial finish is a 'possibly old professional restoration.'

Evidence for this section
  • “The dial is a fine, possibly old professional restoration pearl tone with raised black markers and an original set of hands.”
  • “Light pearl-toned dial with dark baton hour markers and matching baton hands without a seconds hand”
  • “Signed 'AUDEMARS, PIGUET / GENEVE' below 12 o'clock and 'Automatic' in script above 6 o'clock, with 'SWISS' at the bottom edge”

Reported Movement and Dating

The seller states that the watch contains an Audemars Piguet caliber K2120 full-rotor automatic movement based on the Jaeger-LeCoultre caliber 920, running on 36 jewels and featuring a solid 21K gold rotor. The vendor reports that the movement was serviced in 2020.

The circa 1967 dating is attributed by the seller to movement and case serial numbers, which the seller associates with the caliber's first year of market release. Because the case interior and movement are not depicted in the provided visual record, these mechanical specifications, condition reports, and chronological claims remain source-reported.

Evidence for this section
  • “The watch houses a legendary AP K2120 full rotor automatic wind movement which is based on a JLC 920 caliber, running on no less than 36 jewels and finished to the highest possible standards with a solid 21K gold rotor.”
  • “The movement was serviced in 2020, it is running flawlessly and keeping great time.”
  • “according to the serial numbers it appears it is from 1967 which suggests it is from the first year it was introduced to the market.”

Open research questions

  • What specific case reference and serial numbers are engraved on the watch to corroborate the proposed 1967 production date?
  • Does direct examination of the dial typography and substrate confirm whether the pearl dial surface has been refinished or restored?

Source evidence

Recorded claims and source quotations for Audemars Piguet Automatic K2120 18K Yellow Gold Dress Watch
FieldSource-reported valueSource quotation
CaliberAP K2120“The watch houses a legendary AP K2120 full rotor automatic wind movement”
Base movementJaeger-LeCoultre 920“which is based on a JLC 920 caliber”
Jewel count36 jewels“running on no less than 36 jewels”
Case material18K solid yellow gold“cased in a classic slim and elegant 18K solid yellow gold case”
Case diameter32.5 mm“measures 32.5mm round (without crown)”
Thickness7 mm“The overall thickness of this watch including the crystal is just 7mm.”
Lug width18 mm“18mm wide brand new top quality hand made genuine lizard band”
Lug-to-lug length37 mm“and 37mm from top lug to bottom lug.”
Rotor materialSolid 21K gold“finished to the highest possible standards with a solid 21K gold rotor.”
Reported service historyServiced in 2020“The movement was serviced in 2020, it is running flawlessly and keeping great time.”

Visible details

  • Light pearl-toned dial with dark baton hour markers and matching baton hands without a seconds hand
  • Signed 'AUDEMARS, PIGUET / GENEVE' below 12 o'clock and 'Automatic' in script above 6 o'clock, with 'SWISS' at the bottom edge
  • Polished circular yellow gold case with slender downturned lugs and a recessed winding crown
  • Fitted to a textured brown leather lizard-grain strap on a clear display stand

Research qualifications

  • The seller notes the dial may be an older professional restoration
  • Movement caliber, rotor details, and case serial numbers are seller-reported and not directly visible in the image

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

Consulted source

1967 AUDEMARS PIGUET Automatic K2120 Gents 18K Slim Dress Watch – empressissi

Reviewed 2026-10-21 · Record 96fd19534b

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

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