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The Encyclopedia of Horology

Wristwatch · Astronomical wristwatch

Ulysse Nardin Astrolabium Galileo Galilei ref. 910-22

Partially verified

This Ulysse Nardin Astrolabium Galileo Galilei, reference 910-22, is an astronomical wristwatch with an 18K white gold case, an integrated white gold bracelet, and a contrasting yellow gold crown. The auction house dates this piece to circa 1990 and records case number 002 with movement number 91.4.002. Measuring 40 mm across, it is fitted with an automatic calibre UN-97 movement with 33 jewels. The polished bezel displays black-enamelled alternating Roman and Arabic numerals. Its astrolabe dial presents overlapping celestial coordinates, astrological signs, and month indications, while the top and bottom bracelet attachments are engraved with 'ASTROLABIUM' and 'ULYSSE NARDIN' flanking a gold anchor motif.

Front view of Ulysse Nardin Astrolabium Galileo Galilei ref. 910-22 with white gold case and integrated bracelet
Front view of Ulysse Nardin Astrolabium Galileo Galilei ref. 910-22 with white gold case and integrated bracelet — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
phillips.com
Category
Wristwatch · Astronomical wristwatch
Maker / attribution
Ulysse Nardin
Reference
910-22
Catalogue / lot identifier
133
Source-reported date
Circa 1990
Country
Switzerland
Source-reported serial
002

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 Provenance

This Ulysse Nardin Astrolabium Galileo Galilei, reference 910-22, is documented by the auction source as case number 002. The source estimates the production date as circa 1990.

The timepiece is constructed of 18K white gold with an integrated bracelet and a contrasting yellow gold crown.

Evidence for this section
  • “Case No 002”
  • “Reference No 910-22”
  • “Year Circa 1990”
  • “Material 18K white gold, yellow gold crown”

Mechanism and Features

The watch is powered by an automatic calibre UN-97 movement, reported to contain 33 jewels. The movement is numbered 91.4.002.

The model is described as part of the 'Trilogy of Time' series. The dial is designed to present astronomical indications, including sunrise/set, moonrise/set, moon phases, solar and lunar eclipses, and a star chart.

Evidence for this section
  • “Calibre Automatic, cal. UN-97, 33 jewels”
  • “Movement No 91.4.002”
  • “The Astrolabium Galileo Galilei is one of the three models which make up the “Trilogy of Time” series”
  • “featuring a plethora of astronomical indications such as sunrise/set moonrise/set, moon phases, eclipses (both solar and lunar), the star chart”

Visual Observations

The 40 mm diameter case features a polished bezel engraved with alternating Roman and Arabic numerals. The crown at the 3 o'clock position is fluted and composed of yellow gold.

The integrated bracelet includes engravings on the attachments: 'ASTROLABIUM' on the upper end and 'ULYSSE NARDIN' on the lower end, which also features an inset gold anchor motif.

Evidence for this section
  • “Dimensions 40mm Diameter”
  • “Polished bezel engraved with alternating Roman and Arabic numerals filled with dark enamel.”
  • “Contrasting fluted yellow gold crown at the 3 o'clock position.”
  • “Integrated brushed metal bracelet with 'ASTROLABIUM' engraved on the upper end and 'ULYSSE NARDIN' with an inset gold anchor plaque on the lower end.”

Open research questions

  • What is the functional status of the calibre UN-97 movement?
  • What criteria were used by the auction house to assign the circa 1990 production date?

Source evidence

Recorded claims and source quotations for Ulysse Nardin Astrolabium Galileo Galilei ref. 910-22
FieldSource-reported valueSource quotation
Reference910-22“Reference No 910-22”
Case Number002“Case No 002”
Movement Number91.4.002“Movement No 91.4.002”
Calibrecal. UN-97, 33 jewels“Calibre Automatic, cal. UN-97, 33 jewels”
Material18K white gold, yellow gold crown“Material 18K white gold, yellow gold crown”
Dimensions40mm Diameter“Dimensions 40mm Diameter”
Bracelet Length200mm maximum“max length 200mm”
SignaturesCase, dial, movement and bracelet signed“Signed Case, dial, movement and bracelet signed”

Visible details

  • Polished bezel engraved with alternating Roman and Arabic numerals filled with dark enamel.
  • Complex multi-layer astrolabe dial displaying astronomical coordinates, stars, zodiac constellations, and a peripheral month track.
  • Integrated brushed metal bracelet with 'ASTROLABIUM' engraved on the upper end and 'ULYSSE NARDIN' with an inset gold anchor plaque on the lower end.
  • Contrasting fluted yellow gold crown at the 3 o'clock position.
  • Central hands including blued steel and gilt pointers featuring sun and moon emblems.

Research qualifications

  • The movement and case back are not shown in the provided photograph.
  • Full bracelet circumference and clasp are not visible in the frame.

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

Consulted source

Ulysse Nardin The Geneva Watch Auction: SEVEN

Reviewed 2026-10-25 · Record 5d4ee0f739

Terms in this record

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

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