Skip to content
The Encyclopedia of Horology

Wristwatch · Self-winding wristwatch with large date

Ulysse Nardin Michelangelo Ref. 233-48

Partially verified

This Ulysse Nardin Michelangelo wristwatch, numbered 375 and reference 233-48, was produced in the 2000s. It features a tonneau-shaped, stainless steel case measuring 35 x 47 mm with a thickness of 12 mm. The watch is powered by the self-winding Caliber UN 22, which includes a center seconds function, a hack mechanism, and a large date display positioned at the 2 o'clock aperture. The dial is blue with silver-painted Arabic numerals, double line indices, and luminous baton markers, accompanied by luminous blued steel lozenge hands. The case back is secured with four screws, and the winding crown is blue enamel with the UN logo. The timepiece is fitted with a stainless steel Ulysse Nardin buckle and features a rhodium-plated movement finished with fausses cotes decoration, incorporating a straight line lever escapement, a monometallic balance, and a self-compensating flat balance-spring.

Ulysse Nardin Michelangelo wristwatch, reference 233-48, with blue dial and date aperture.
Ulysse Nardin Michelangelo wristwatch, reference 233-48, with blue dial and date aperture. — Antiquorum. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
catalog.antiquorum.swiss
Category
Wristwatch · Self-winding wristwatch with large date
Maker / attribution
Ulysse Nardin
Reference
233-48
Catalogue / lot identifier
664
Source-reported date
2000s
Source-reported place
Not established
Source-reported serial
375

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 Dial

The Ulysse Nardin Michelangelo is characterized by a two-body, tonneau-shaped stainless steel case. The exterior features a combination of polished and brushed surfaces, with curved lugs and a case back secured by four screws. A blue enamel screw-down winding crown, marked with the UN logo, provides water resistance, while the name "Ulysse Nardin" is engraved on the case band.

The blue dial is equipped with painted silver Arabic numerals and double line indices. It includes a double aperture for the large date display located at the 2 o'clock position and an inner minute track featuring red and silver quarters in Arabic numerals. Time is indicated by luminous blued steel lozenge hands, and the dial features luminous baton indices for legibility.

Evidence for this section
  • “C. Two-body, polished and brushed, case back with 4 screws, curved lugs, blue enamel screw-down winding-crown with UN logo, Ulysse Nardin engraved on the band, sapphire crystal.”
  • “D. Blue with painted silver Arabic numerals and double line indexes, luminous baton indexes, double aperture for the large date at 2, inner minute track with red and silver quarters Arabic numerals. Luminous blued steel lozenge hands.”

Movement and Functionality

The watch operates on the self-winding Caliber UN 22. This movement is rhodium-plated and features fausses cotes decoration. Technically, it incorporates a straight line lever escapement, a monometallic balance, a shock-absorber system, and a self-compensating flat balance-spring. A hack mechanism is provided for precision setting.

The dial, case, and movement are signed by Ulysse Nardin, confirming the authenticity of the components as a singular unit.

Evidence for this section
  • “M. Cal. UN 22, rhodium-plated, fausses cotes decoration, straight line lever escapement, monometallic balance, shock-absorber, self-compensating flat balance-spring, hack mechanism.”
  • “Dial, case and movement signed.”
  • “Overhaul recommended, at buyer's expense”

Condition and Grading

According to the provided auction details, the watch is graded using a specific system. The case is classified as "very good," and the movement, while also graded as "very good," requires professional servicing. The dial is described as being in "as new" condition.

The watch is presented with its original hands and a stainless steel Ulysse Nardin buckle, consistent with the construction details noted in the catalog entry.

Evidence for this section
  • “Grading System Grade: A Good Case: 2 Very good Movement: 2* Very good Overhaul recommended, at buyer's expense Dial: 1-01 As new HANDS Original”

Open research questions

  • What is the specific production year within the 2000s for case number 375?
  • Was this reference produced with any other dial color variations?

Source evidence

Recorded claims and source quotations for Ulysse Nardin Michelangelo Ref. 233-48
FieldSource-reported valueSource quotation
MakerUlysse Nardin“Ulysse Nardin, "Michelangelo", No. 375, Ref. 233-48.”
Reference233-48“Ref. 233-48.”
MovementCaliber UN 22“M. Cal. UN 22”
Case dimensions35 x 47 mm“Dim. 35 x 47 mm.”
Thickness12 mm“Thickness 12 mm.”
Case constructionTwo-body, polished and brushed“C. Two-body, polished and brushed”
Dial detailsBlue with painted silver Arabic numerals“D. Blue with painted silver Arabic numerals”
CrystalSapphire“sapphire crystal.”

Visible details

  • Blue enamel screw-down winding crown with UN logo
  • Large date aperture at 2 o'clock
  • Ulysse Nardin signature on the case band

Research qualifications

  • Movement condition reported as 'Overhaul recommended'
  • Production date only specified as '2000's'

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

Consulted source

Michelangelo Ulysse Nardin, "Michelangelo", No. 375, Ref. 233-48. Made in the 2000's. Fine, tonneau-shaped, self-winding, center seconds, water-resistant, stainless steel wristwatch with large date and a stainless steel Ulysse Nardin buckle.

Reviewed 2026-10-26 · Record 5d96198298

Terms in this record

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