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Ulysse Nardin 'Astrolabium Galileo Galilei' Ref. 911-22

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1990s

Maker / issuer

Ulysse Nardin

This Ulysse Nardin 'Astrolabium Galileo Galilei' wristwatch, reference 911-22, is an astronomic self-winding timepiece in 18K yellow gold, dated by the auction house to the 1990s.

The 40 mm three-body case features hooded mobile lugs engraved with the model name, maker's signature, and an anchor emblem. Its rounded bezel carries engraved alternating Roman and Arabic numerals indicating a 24-hour scale. The multi-layered planispheric dial is set for the latitude of Geneva, incorporating overlapping rings to indicate equinoctial and local time, months, signs of the zodiac, lunar phases, and the elevation and azimuth of celestial bodies.

Evidence at a glance

Linked sources
1
Photograph views
1
Catalogue references
0

Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.

Technical characteristics

Type
Calendar & moon-phase watch
Jewels
33
Caliber
Cal. UN-97
Diameter
40 mm
Reference
911-22
Case material
18K yellow gold
Place recorded
Switzerland
Maker / attribution
Ulysse Nardin

Design

Visible features
• Engraved hooded mobile lugs displaying 'ASTROLABIUM' at 12 o'clock and 'ULYSSE NARDIN' with an anchor emblem at 6 o'clock • Rounded yellow gold bezel engraved with alternating Roman and Arabic numerals across a 24-hour cycle • Multi-part astrolabe dial displaying celestial indicators including horizon, dawn, dusk, and star names such as Antares, Arkturus, and Vega • Gold sun pointer alongside straight and serpentine hands • Fitted to a brown leather strap
Case Construction
This timepiece features a three-body 18K yellow gold case measuring 40 mm in diameter. It is constructed with a rounded bezel featuring engraved alternating Roman and Arabic numerals to indicate a 24-hour cycle. The assembly includes hooded mobile lugs, which are engraved with the maker's signature and an anchor emblem. The case exhibits a combination of polished and satiné finishes. While the source describes a transparent screw-down case back, this component is not visible in the available front-facing documentation.
Dial Configuration
The planispheric dial is set for the latitude of Geneva and finished in a satiné gray and silver tone. It is designed with an off-center gold disk divided into the twelve signs of the zodiac. The display utilizes a series of overlapping rings to indicate astronomic data, including equinoctial and local time, the months, zodiac signs, lunar phases, and the elevation and azimuth of the sun and moon. The handset includes a pink gold sun pointer paired with blued steel baton and serpentine hands.
Mechanical Specifications
The watch is powered by the self-winding Caliber UN-97. Reported features include 33 jewels, a straight-line lever escapement, and an annular balance with three arms equipped with a shock-absorber and a self-compensating flat balance-spring. The movement incorporates an 18K engraved gold bi-directional rotor. Source records indicate the movement is numbered.

Identification

Reference
911-22
Serial number
001
Source note
Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.

Research required

  • Research required: The movement and transparent screw-down case back described by the catalog are not visible in the front-facing photograph.
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