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Ulysse Nardin Keyless Chronograph

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

circa 1935

Maker / issuer

Ulysse Nardin

This Ulysse Nardin pocket watch, serial number 205463, dates to approximately 1935. It is a keyless chronograph housed in a four-body, polished "bassine" stainless steel case measuring 51 mm in diameter.

The dial is finished in matte silver and features applied Breguet numerals, with outer minute and seconds tracks including five-minute Arabic markers. Additional dial features include a 30-minute register, a subsidiary sunk seconds dial, and an up-and-down power reserve indicator positioned below the 12 o'clock hour. The watch displays blued steel "spade" hands for hours and minutes. Internally, the 18''' (41 mm) movement is rhodium-plated with "fausses côtes" decoration and 21 jewels.

The mechanism utilizes a straight-line lever escapement, a monometallic balance with a self-compensating blued steel Breguet balance spring, and a spring-loaded micrometric regulator. The object is signed on the dial, case, and movement.

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

Date
circa 1935
Type
Chronograph & split-seconds watch
Maker
Ulysse Nardin
Diameter
51 mm
Case Type
Bassine
Jewel Count
21 jewels
Case Material
Stainless steel
Serial Number
205463
Place recorded
Switzerland
Maker / attribution
Ulysse Nardin
Movement Decoration
Fausses côtes

Design

Case and Dial
The watch is enclosed in a four-body stainless steel case with a polished "bassine" design. It incorporates a snap-on silver cuvette, which separates the internal movement from the case back. The crown and bow are integrated into the case structure to facilitate keyless winding and chronograph operation. The matte silver dial is appointed with Breguet numerals. Time and chronometric data are displayed via an outer minute and seconds track, which includes five-minute Arabic increments. Subsidiary dials consist of a sunk seconds display and a 30-minute chronograph register. An up-and-down power reserve indicator is located beneath the 12 o'clock numeral. The time is indicated by blued steel hands in a "spade" style.
Visible features
• Applied black Breguet numerals on a silver matte dial • Up-and-down power reserve indicator below the 12 o'clock position • Polished stainless steel bow and crown • Blued steel chronograph and timekeeping hands
Movement and Escapement
The movement measures 18 lignes (41 mm) and features a rhodiumed finish accented with "fausses côtes" decoration. It is constructed with 21 jewels to minimize friction across the moving parts. The assembly is designed with a straight-line lever escapement and includes a spring-loaded micrometric regulator for precise adjustments. The balance wheel is monometallic and operates in conjunction with a self-compensating blued steel Breguet balance spring. This configuration serves to maintain consistent oscillation rates throughout the functioning of the timekeeping mechanism.
Signatures and Condition
The watch is signed by the manufacturer, Ulysse Nardin, on the dial, the case, and the movement. The auction description provides a grading system for the watch's components, assigning a Grade A to the object overall, with individual grades of 3 for the case, movement, and dial.

Identification

Serial number
205463
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 indicates that an overhaul is recommended
  • Research required: The exact nature of the '3 - 6 - 01' grading for the dial is not defined by the source
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