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The Encyclopedia of Horology

Marine chronometer · Two-day marine chronometer in gimbaled box

GUB Glashütte Marine Chronometer No. 8938

Partially verified

This 20th-century marine chronometer is attributed to GUB Glashütte and bears serial number 8938. The instrument features a light-toned dial signed 'GLASHÜTTER UHRENBETRIEBE' alongside the 'GUB GLASHÜTTE/SA' emblem. It displays black Roman numeral hour markers, an auxiliary 'AUF / AB' state-of-wind sector beneath the 12 o'clock position calibrated to 56 hours, and an enlarged continuous subsidiary seconds dial above the 6 o'clock position inscribed with the serial number '8938'. The brass bowl is suspended within a brass gimbal ring system set inside a wooden case lined with green textile.

Dial and gimbal-mounted brass bowl of GUB Glashütte marine chronometer no. 8938
Dial and gimbal-mounted brass bowl of GUB Glashütte marine chronometer no. 8938 — TheBestAntique. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.proantic.com
Category
Marine chronometer · Two-day marine chronometer in gimbaled box
Maker / attribution
GUB Glashütte
Reference
1543550
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
20th century
Country
Germany
Source-reported serial
8938

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

Object Identity and Origin

The object is listed as a vintage marine chronometer attributed to maker Gub Glashütte and identified with serial number 8938. The listing attributes the piece to 20th-century manufacture in Germany.

Visual observation confirms the dial is signed 'GLASHÜTTER UHRENBETRIEBE' with the centered 'GUB GLASHÜTTE/SA' logo, corresponding to the seller's attribution.

Evidence for this section
  • “Artist: Gub Glashütte”
  • “vintage GUB Glashütte marine chronometer (serial no. 8938 )”
  • “Made in Germany”
  • “Period: 20th century”
  • “Dial is signed 'GLASHÜTTER UHRENBETRIEBE' with the 'GUB GLASHÜTTE/SA' logo centered.”

Dial Configuration and Indications

The instrument features a dial with Roman numerals and a power reserve indicator. Direct observation shows an 'AUF / AB' state-of-wind reserve indicator subdial calibrated from 0 to 56 hours positioned below the XII marker.

The dial also incorporates an enlarged subsidiary seconds register positioned above the VI hour marker, which is inscribed with the serial number '8938'.

Evidence for this section
  • “With Roman numerals, power reserve indicator , and subdial for seconds”
  • “Features an 'AUF / AB' state-of-wind reserve indicator subdial calibrated from 0 to 56 hours positioned below XII.”
  • “Enlarged subsidiary seconds register positioned above VI is inscribed with serial number '8938'.”

Mounting, Housing, and Documentation Limitations

The chronometer is mounted in a brass gimbal ring set within a wooden box. Direct observation shows the wooden box fitted with brass corner hardware, brass hinges, and a green lining.

The seller describes the casing as an 'original mahogany wood presentation box' containing a 'precision nautical brass clock movement'. However, the movement is not uncased or shown from the reverse in the documentation, leaving internal calibres, escapement components, and mechanical integrity unverified in this record.

Evidence for this section
  • “mounted in a gimbal system inside its original mahogany wood presentation box”
  • “precision nautical brass clock movement”
  • “Mounted in a brass gimbal ring within a wooden box displaying brass corner hardware, brass hinges, and green lining.”

Open research questions

  • Does internal movement numbering match dial serial number 8938?
  • Which specific movement calibre is fitted, and does it retain its factory escapement components?
  • Are any maritime registry, issue, or inspection marks recorded on the brass bowl or wooden box exterior?

Source evidence

Recorded claims and source quotations for GUB Glashütte Marine Chronometer No. 8938
FieldSource-reported valueSource quotation
MakerGUB Glashütte“Artist: Gub Glashütte”
Serial Number8938“serial no. 8938”
Country of originGermany“Made in Germany”
Box MaterialMahogany wood“original mahogany wood presentation box”
Period20th century“Period: 20th century”
MountingGimbal system“mounted in a gimbal system”
Seller SKUK167“SKU: K167”
Seller-stated conditionExcellent condition (unverified dealer assertion)“Condition: Excellent condition”

Visible details

  • Dial is signed 'GLASHÜTTER UHRENBETRIEBE' with the 'GUB GLASHÜTTE/SA' logo centered.
  • Features an 'AUF / AB' state-of-wind reserve indicator subdial calibrated from 0 to 56 hours positioned below XII.
  • Enlarged subsidiary seconds register positioned above VI is inscribed with serial number '8938'.
  • Mounted in a brass gimbal ring within a wooden box displaying brass corner hardware, brass hinges, and green lining.

Research qualifications

  • Movement is not uncased or shown from the reverse side.
  • Specific mahogany wood type and outer carrying transport case details rely on seller assertions not visible in the provided primary photograph.

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

Consulted source

Proantic: Vintage Marine Chronometer Gub Glashütte No. 8938 | German N

Reviewed 2026-10-21 · Record 326985d965

Terms in this record

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