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Omega Constellation Ref. 2852 Wristwatch

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

late 1950's

Maker / issuer

Omega

This Omega Constellation wristwatch, reference 2852, dates from the late 1950s and is presented in an 18K yellow gold two-body case. The watch features a polished finish, a lapidated bezel, and concave lugs, with a snap-on case back that includes the Constellation logo and the engraving "Constellation, Waterproof."

It houses an automatic, copper-colored Caliber 505 movement, which contains 24 jewels, a straight-line lever escapement, and a micrometer regulator. The balance is monometallic and adjusted to five positions and temperatures. The two-tone silver dial is marked with applied faceted yellow gold indexes, Arabic numerals, luminous dots, and a gold star at the 6 o'clock position. The luminous yellow gold dauphine hands indicate the time.

The timepiece is accompanied by an 18K yellow gold Omega buckle. The auction description reports that the movement, case, and dial are signed.

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
Self-winding chronometer wristwatch
Movement
Cal. 505
Reference
2852
Adjustment
Adjusted to 5 positions and temperatures
Dimensions
35 mm diameter, 11 mm thickness
Case Material
18K yellow gold
Movement Details
24 jewels, straight-line lever escapement
Maker / attribution
Omega

Design

Movement
Power is provided by a copper-colored Caliber 505 automatic movement. This caliber incorporates 24 jewels and utilizes a straight-line lever escapement. The movement is equipped with a shock absorber and a self-compensating flat balance spring. Precision is regulated via a micrometer regulator, and the monometallic balance is adjusted to perform accurately in five positions and across various temperatures. The movement, alongside the case and dial, is signed by the manufacturer.
Case and Dial
The timepiece features a two-body, solid 18K yellow gold case measuring 35 mm in diameter. The exterior is distinguished by a polished finish and a lapidated bezel, complemented by concave lugs. The case back is a snap-on type, specifically engraved with the Constellation logo and the text "Constellation, Waterproof." The dial is a two-tone silver design, featuring applied faceted yellow gold indexes interspersed with luminous dots. Arabic numerals are positioned at the 12, 3, 6, and 9 o'clock marks, with an applied gold star situated at the 6 o'clock position. Timekeeping is performed by luminous yellow gold dauphine hands.
Visible features
• Dauphine-style hands with luminous inserts • Applied gold star emblem located above 6 o'clock • Concave lug design integrated into the case structure • Applied Arabic numerals at 12, 3, 6, and 9
Reported Condition
The auction house provides a grading assessment for the watch components, assigning a general grade of AA. The dial is also graded at 3-7-01, with the auction description noting that the dial is in good condition, although the hands are oxidized. The watch includes an original 18K yellow gold Omega buckle.

Identification

Reference
2852
Serial number
15175055
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 notes the dial is oxidized
  • Research required: The auction report recommends a movement overhaul
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