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Tudor wristwatch, ref. 7149, Oyster date so called, 1976 — view 1 of 2
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Wristwatches · Wristwatch

Tudor wristwatch, ref. 7149, Oyster date so called, 1976

DocumentedDocumented from an auction catalogue; attribution as stated by the auction house.
Maker / attribution
Tudor (brand / maker)
Date
1976
Country of origin
Switzerland
Object type
Wristwatch
Materials / technique
steel
Dimensions
diameter 40 mm
Lot
Lot 347-13
Credit line
Auction lot record: LOT 13, Monaco, January 18, 2022
Catalogue title (original)
Tudor. Ref. 7149, Oyster date, so called (English)

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

Record summary

Catalogued by Antiquorum auction archive, Geneva (lot Lot 347-13), this is a wristwatch by Tudor, made in Switzerland, dated 1976. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Materials and techniques recorded by the source: steel. Recorded dimensions: diameter 40 mm. The record is illustrated with 2 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

Antiquorum catalogue description

Fine and rare stainless-steel chronograph, manual winding wristwatch with date and registers made. Screwed-down engraved case back, tachymeter graduation on the blue Bakelite bezel at 500 units per hour. Triplock winding crown protected by square crown guard, crystal with cyclops lens. Aperture for the date at 6 o’clock, grey matte dial, blue subsidiary dials for constant seconds and 45-minute register, baton indexes, outer 1/5th seconds scale with 5 minute/second orange Arabic markers. Black baton hands.

Lot specifications (Antiquorum)

Model: Monte-Carlo; Reference: 7149; Case No.: 844145; Caliber: 234; Diameter: 40 mm.; Weight: 62,1 gr. (approx.); Signature: Case, dial and movement

Inscriptions & marks

Case, dial and movement

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

Dive and water-resistant watches

Keeping water and dust out of a wristwatch was a long-standing challenge. Rolex's screw-down Oyster case (1926) and Omega's Marine (1932) were landmarks; in the early 1950s Blancpain's Fifty Fathoms and Rolex's Submariner defined the professional dive watch with rotating bezels for timing dives, luminous dials and high water resistance. The ISO 6425 standard (1982) later codified what a 'diver's watch' must do.

Dive watches became icons of post-war design and exploration, and their evolution — helium escape valves, ceramic bezels, saturation-diving depth ratings — records the history of underwater work.

What to look for

  • Unidirectional or bidirectional rotating bezel with minute markings.
  • Screw-down crown and case back; depth rating printed on the dial.
  • Luminous hands and markers (radium before c. 1960, tritium c. 1960–1998, then Super-LumiNova).
  • Reference numbers on the case between the lugs or inside the back.

Dating clues

  • Screw-down Oyster cases: from 1926.
  • Professional dive watches: from 1953.
  • Tritium 'T' marks on dials: c. 1960–1998.

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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