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Tudor Oysterdate 'Monte Carlo' Chronograph, c. 1982

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Tudor (maker)
Date
c. 1982
Country of origin
Switzerland
Object type
Wristwatch
Dimensions
Case 40 mm
Stock no.
40991276
Credit line
Dealer listing, Analog/Shift (40991276)
Catalogue title (original)
Tudor Oysterdate 'Monte Carlo' Chronograph (English)

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Record summary

Catalogued by Analog/Shift (dealer), New York (stock number 40991276), this is a wristwatch by Tudor, made in Switzerland, dated c. 1982. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Recorded dimensions: Case 40 mm. The record is illustrated with 6 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

Dealer description — Analog/Shift

Tudor had its genesis as a subsidiary of Rolex. Its watches were Rolexes in all but name: same Rolex Oyster case, same crowns, and Rolex crystals. The only difference was what beat inside the Oyster cases — Swiss ETA movements rather than movements that Rolex built in-house. However, as the decades progressed, Tudor took steps to step out of its big brother’s shadow. As time wears on, more and more watch collectors and enthusiasts begin to appreciate the designs that were exclusive to Tudor's lineup. Though to some the Tudor Submariner was a pale imitation of its Rolex counterpart, by the 1960s and 1970s the model underwent a metamorphosis with a new design language that has become just as iconic. It started with the hands and indices—triangular in shape, giving rise to the nickname “Snowflake.” Such is also the case with their chronographs, which now enjoy their own cult following and present excellent value next to the chronographs of the same era from their sibling brand. This particular piece, a 'Monte Carlo' Reference 9420/0, dates to circa 1982 and features a 40mm stainless steel case with holey lugs , a magnified acrylic crystal, a Rolex signed crown, screw-down pushers, and a stainless steel tachymeter bezel. Inside, this piece is graced with a fantastic, wildly cool ,matte black 'exotic' dial with orange accents, applied indices, a date complication, and a matching handset. Fitted to a stainless steel Oyster bracelet with a Rolex signed blade clasp, this piece is powered by the bombproof Valjoux 7750 automatic winding chronograph movement. It would be enough to enjoy this excellent piece on its own, but this piece comes compete with its boxes, books, papers, and a caseback engraving, suggesting that this piece was gifted to an Argentinian Jockey. This is a chronograph with a an interesting history, from a storied brand, and perhaps even more style than its 'big' brother.

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

Chronographs and split-seconds watches

A chronograph is a watch with an additional seconds hand that can be started, stopped and returned to zero independently of the timekeeping. Louis Moinet built an early example in 1816 and Nicolas Rieussec a recording 'chronographe' in 1821; Adolphe Nicole's heart-shaped reset cam (patented 1862) made the modern return-to-zero possible. Split-seconds (rattrapante) chronographs add a second hand that can be stopped for intermediate times; flyback chronographs restart instantly.

Chronographs were essential tools for doctors (pulsometer scales), artillery (telemeter), engineers and sport. In wristwatches, Valjoux, Venus, Lemania and later the automatic chronographs of 1969 (Zenith El Primero, the Chronomatic Calibre 11 group and Seiko 6139) are milestones.

What to look for

  • Push-pieces on the case band or a single button in the crown (monopusher).
  • Subsidiary registers for minutes and hours; tachymeter, telemeter or pulsometer scales.
  • Column wheel versus cam control visible in the movement.
  • Calibre markings of specialist makers (Valjoux, Lemania, Venus, Landeron).

Dating clues

  • Pocket chronographs with heart cam reset: after 1862.
  • Wrist chronographs: from c. 1910; two-button designs from the 1930s.
  • Automatic chronographs: from 1969.

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.

Read next:Flyback chronographChronograph

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