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Jaeger LeCoultre Ellipse Ref. 5002.42 Automatic Wristwatch, c. 1970s — view 1 of 4
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Wristwatches · Wristwatch

Jaeger LeCoultre Ellipse Ref. 5002.42 Automatic Wristwatch, c. 1970s

DocumentedDocumented from an auction catalogue; attribution as stated by the auction house.
Maker / attribution
Jaeger (maker)
Date
c. 1970s
Country of origin
Unrecorded in source
Object type
Wristwatch
Materials / technique
stainless steel
Lot
Item 242649345
Credit line
Auction lot record: lot 3046, Collectors, Alderfer Auction (2026), via LiveAuctioneers
Catalogue title (original)
Jaeger LeCoultre Ellipse Ref. 5002.42 Automatic Wristwatch (English)

View the source record (auction lot) ↗ (opens another website in a new tab)Suggest a correction

Record summary

Catalogued by LiveAuctioneers auction archive (lot Item 242649345), this is a wristwatch by Jaeger, dated c. 1970s. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Materials and techniques recorded by the source: stainless steel. The record is illustrated with 4 photographs.

Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.

Catalogue description

Lot description — Alderfer Auction

Jaeger LeCoultre Ellipse stainless steel automatic wristwatch, Ref. 5002.42, circa 1970s, with blue dial, applied baton hour markers showing oxidation, sweep seconds, and date aperture at 3 o'clock. Automatic Caliber 900 ultra-thin movement, stainless steel oval case measuring approximately 31mm, and leather strap with steel buckle. Running at time of cataloging.

Historical context

Quartz Revolution (1969 – 1990)

Seiko's Astron begins mass quartz timekeeping; traditional industries contract sharply.

Quartz and digital watches transformed the market after 1969. Swiss employment collapsed, Japanese and Hong Kong production soared, and the Swatch (1983) helped the Swiss industry recover; mechanical watches survived as luxury goods.

Read the period in the timelineMore wristwatches from this periodEarlier: Modern Mechanical Horology

Atlas type guide

Automatic (self-winding) watches

Self-winding watches use the wearer's motion to wind the mainspring. Abraham-Louis Perrelet and Breguet made 'perpétuelle' pocket watches with oscillating weights in the late eighteenth century, but the principle only became practical in the wristwatch. John Harwood patented a bumper automatic in 1923; Rolex's Perpetual rotor (1931) winding in one direction, and later bidirectional rotors (Eterna, Felsa Bidynator), established the modern form. Micro-rotors (Universal Genève, Buren) and peripheral rotors made automatic watches thinner.

What to look for

  • A semicircular rotor turning 360° over the movement, or a 'bumper' weight that rebounds between springs.
  • 'Automatic', 'Perpetual' or 'Self-winding' on the dial.
  • A sealed screw-back case, since automatic watches are wound less often by the crown.

Dating clues

  • Bumper automatics: 1923–c. 1955.
  • Full rotors: from 1931 (Rolex); widespread after c. 1950.
  • Micro-rotors: from 1954–1958.

General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.

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