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The Encyclopedia of Horology

Wristwatch · Automatic wristwatch

Girard-Perregaux Gyromatic 10K Gold Filled Wristwatch

Partially verified

This is a vintage Girard-Perregaux Gyromatic automatic wristwatch dating to the 1960s according to the seller. Housed in a 33 mm round 10K yellow gold filled case, it features fancy lugs and an original signed crown as reported by the source. The watch is powered by a 17-jewel Girard-Perregaux & Co. Gyromatic automatic movement numbered 2119640. The champagne dial has applied gold stick hour markers, matching gold hands, and a central seconds hand, exhibiting surface patina and speckling. The dial is signed with the applied GP emblem, 'Girard-Perregaux', 'GYROMATIC', and 'SWISS' at the 6 o'clock position.

Front view of the Girard-Perregaux Gyromatic wristwatch showing dial, hands, bezel, and upper portion of the strap
Front view of the Girard-Perregaux Gyromatic wristwatch showing dial, hands, bezel, and upper portion of the strap — SECOND HAND HOROLOGY. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
secondhandhorology.com
Category
Wristwatch · Automatic wristwatch
Maker / attribution
Girard-Perregaux
Reference
B1988
Catalogue / lot identifier
WA-0785
Source-reported date
1960s
Country
Switzerland
Source-reported serial
891131

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 Lug Configuration

The watch features a round case described by the seller as 10K yellow gold filled, measuring 33 mm in diameter (35.2 mm with the crown), 39.2 mm from lug to lug, and 11 mm in thickness. The design incorporates what the seller terms a "fancy lug design" with a 17 mm lug width.

Observation of the front shows a smooth, polished gold-tone bezel displaying fine surface scratches and studio lighting reflections. The case back is reported by the seller to be marked "G.P. B1988 10K Gold Filled 891131," and the winding crown is described as an original signed crown, though the case back and crown engravings are not visible in the provided dial view.

Evidence for this section
  • “Cased in a 33mm round case and featuring fancy lug design, all in 10K yellow gold filled.”
  • “Case Lug to Lug 39.2 Case Thickness 11 Lug Width 17”
  • “Case Back Markings: G.P. B1988 10K Gold Filled 891131”
  • “Polished gold-colored bezel showing fine surface scratches and reflections from studio lighting.”

Dial and Hands

The dial has a champagne tone that displays visible age speckling and surface patina. The hours are indicated by applied gold-tone stick indexes, including double-bar markers positioned at 12 and 6 o'clock.

Time is shown with matching gold-tone hour, minute, and central sweep seconds hands. The dial is printed and applied with the Girard-Perregaux logo and name at the top, "GYROMATIC" on the lower section, and "SWISS" at the 6 o'clock edge.

Evidence for this section
  • “Still has the original champagne (showing some age and patina) dial adorned with gold stick hour markers and matching gold hands.”
  • “The dial is signed with the Girard-Perregaux name/logo on top and "Gyromatic on the bottom".”
  • “Champagne-toned dial with speckled age spotting and light patina across the surface.”
  • “Applied gold-tone stick indexes with double-bar markers at 12 and 6 o'clock.”

Movement and Documentation Limits

While the movement is concealed in the provided front photograph, the seller transcribes the caliber markings as "Girard-Perregaux & Co. Gyromatic 17 Jewels Unadjusted 2119640 Swiss." The seller listing includes general brand background indicating that Gyromatic movements were introduced in 1957 and beat at 18,000 bph.

The seller assigns the watch reference B1988 and dates it to the 1960s. Performance claims such as running excellently and assertions of original parts are seller marketing assessments and are not independently verified in the listing documentation.

Evidence for this section
  • “Movement: Girard-Perregaux & Co. Gyromatic 17 Jewels Unadjusted 2119640 Swiss”
  • “reference B1988, from the 1960s”
  • “these movements beat at the standard 18,000 bph (beats per hour).”
  • “It is in good condition and runs excellently!”

Open research questions

  • What specific base caliber ebauche was utilized for movement serial number 2119640?
  • Can Girard-Perregaux archives verify the precise year of manufacture for reference B1988 and serial number 891131?
  • What signature or emblem is stamped on the winding crown?

Source evidence

Recorded claims and source quotations for Girard-Perregaux Gyromatic 10K Gold Filled Wristwatch
FieldSource-reported valueSource quotation
ReferenceB1988“reference B1988, from the 1960s”
Case Back MarkingsG.P. B1988 10K Gold Filled 891131“Case Back Markings: G.P. B1988 10K Gold Filled 891131”
Movement DetailsGirard-Perregaux & Co. Gyromatic 17 Jewels Unadjusted 2119640 Swiss“Girard-Perregaux & Co. Gyromatic 17 Jewels Unadjusted 2119640 Swiss”
Case Diameter33 mm“Cased in a 33mm round case”
Case Material10K yellow gold filled“all in 10K yellow gold filled”
Case Width with Crown35.2 mm“Case w/Crown 35.2”
Case Lug to Lug39.2 mm“Case Lug to Lug 39.2”
Case Thickness11 mm“Case Thickness 11”
Strap DescriptionNew-old-stock brown genuine leather two-piece strap“It comes with a new-old-stock brown genuine leather two-piece strap.”

Visible details

  • Champagne-toned dial with speckled age spotting and light patina across the surface.
  • Applied gold-tone stick indexes with double-bar markers at 12 and 6 o'clock.
  • Polished gold-colored bezel showing fine surface scratches and reflections from studio lighting.

Research qualifications

  • Movement and case back markings are documented in the seller description but not visible in the provided dial photograph.
  • Condition claims such as running excellently represent seller assessments.

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

Consulted source

Vintage GIRARD-PERREGAUX Gyromatic Watch 17 Jewels 10K GF Automatic Wr – SECOND HAND HOROLOGY

Reviewed 2026-10-21 · Record a1a2b807aa

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

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