Skip to content

Ulysse Nardin Perpetual Calendar GMT Ref. 320-22

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1990s

Maker / issuer

Ulysse Nardin

This Ulysse Nardin wristwatch, referenced as 320-22 and numbered 033, was produced in the 1990s. The watch is crafted from 18K white gold and features a three-body, solid, polished case with a transparent back secured by six screws and fluted curved lugs.

It houses a self-winding Caliber UN 32 movement, which includes a rotor engraved with a perpetual movement patent number. The dial is finished in a two-tone, satiné silver and white design, incorporating applied white gold baton indexes with luminous dots. Functionally, it offers a perpetual calendar with apertures for the date, day, month, and leap year, alongside a 24-hour graduation for a second time zone. Two olive-shaped push buttons positioned at 4 and 8 o'clock allow for independent adjustment of the hour hand.

The watch is finished with luminous blued steel lozenge hands and includes a steel Ulysse Nardin buckle.

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
Perpetual calendar watch
Patent
Perpetual movement patent 680 630-2
Diameter
38 mm
Material
18K white gold
Movement
Cal. UN 32
Reference
320-22
Thickness
12.5 mm
Manufacturer
Ulysse Nardin
Serial Number
033
Place recorded
Switzerland
Maker / attribution
Ulysse Nardin

Design

Visible features
• Olive-shaped push buttons located at 4 and 8 o'clock for time zone adjustment • Transparent case back secured with six screws • Two-tone satiné silver and white dial with guilloché subsidiary seconds at 9 • Luminous blued steel lozenge hands
Case and Dial Features
The timepiece is constructed with a three-body, solid, polished 18K white gold case, measuring 38 mm in diameter and 12.5 mm in thickness. The design includes fluted curved lugs and a transparent case back, which is attached using six screws. For the user's convenience, two olive-shaped push buttons are integrated into the case band at the 4 and 8 o'clock positions, specifically intended for the independent adjustment of the hour hand to facilitate tracking different time zones. The dial is presented in a two-tone, satiné silver and white configuration. It features applied white gold baton indexes augmented by luminous dots. Time is indicated by luminous blued steel lozenge hands, with a dedicated arrow-tipped hand for the 24-hour second time zone graduation. The perpetual calendar functionality is displayed through dedicated apertures for the day, month, date, and leap year. A guilloche-finished subsidiary seconds dial is located at the 9 o'clock position.
Condition and Attribution
The auction house provides a comprehensive grading of the object's current state. The overall grade assigned is AA, indicating a very good condition. Specifically, the dial is described as being in 'as new' condition, and the hands are noted as original to the timepiece. The case is described as being in good condition, although it bears slight scratches. The watch is accompanied by a steel Ulysse Nardin buckle. All cataloguing information, including the manufacture in Locle & Genève during the 1990s, is provided by the auction house.
Movement and Technical Specifications
The watch is powered by the self-winding Caliber UN 32. This movement is rhodium-plated and finished with fausses cotes decoration. Technically, the movement utilizes 34 jewels and is equipped with a straight-line lever escapement. Additional components include a monometallic balance wheel, a shock absorber, and a self-compensating flat balance spring. A notable feature of the automatic winding system is the rotor, which bears an engraving citing a specific perpetual movement patent, numbered 680 630-2. The movement, along with the dial and case, is signed by the manufacturer.

Identification

Reference
320-22
Serial number
033
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 auction description reports the movement requires an overhaul
  • Research required: The auction description notes the case has slight scratches
Can you source one of these? Submit a reference