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Tudor Oyster Prince Date (Ref. 9020/0), 1977 — view 1 of 5
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Tudor Oyster Prince Date (Ref. 9020/0), 1977

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Tudor (maker)
Date
1977
Country of origin
Switzerland
Object type
Wristwatch
Dimensions
Case 34 mm
Stock no.
Product 8238787559607
Credit line
Dealer listing, Huntington Company (product 8238787559607)
Catalogue title (original)
1977 Tudor Oyster Prince Date (Ref. 9020/0) (English)

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Record summary

Catalogued by Huntington Company (dealer) (stock number Product 8238787559607), this is a wristwatch by Tudor, made in Switzerland, dated 1977. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Recorded dimensions: Case 34 mm. The record is illustrated with 5 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 — Huntington Company

Tudor Oyster History - Tudor Oyster timepieces, introduced in 1946, were manual-wind watches housed in 34mm steel Oyster cases with a wide range of dial variations and were later introduced in other case sizes. In 1952, the "Oyster Prince" was introduced, indicating the presence of an automatic movement, which was Tudor's equivalent to Rolex's "Perpetual." These automatic movements were modified by Tudor but based on the Fleurier Calibre 390, making them bulletproof almost. Hans Wilsdorf, the founder of Tudor, aimed to create watches of the same quality and reliability as Rolex. He introduced the Oyster case and auto-wind movement, which he believed would make these watches stand up to his high expectations and promise. The Oyster case is iconic and one of the most beautiful and aesthetically pleasing designs of the 20th century. The Oyster was designed to hermetically seal the movement inside the case using screws and seals. The introduction of the three-piece case made replacing scuffed and cracked crystals easier and is still in use today. The screw-down crown and case back were still key features, but the bezel pressed over the crystal to seal the case. Specifications Model: Oyster Prince Movement: Automatic Year: 1977 Contents: Watch Only Case Material: Steel Case Size: The size is 34mm by 41mm, and it is 10mm thick, including the domed crystal. The lug width is 19mm. Rolex signed case with a smooth bezel. Dial: A silver sunburst dial with tritium lume on the hands and hour markers. Strap/Buckle: The original oyster bracelet has folded links. Buckle/Clasp: An early and original Rolex signed clasp. Condition Case: The case is very even. The lugs are sharp and untouched, which leads us to believe this is an unpolished piece. Bezel: The smooth steel bezel is unpolished. Crystal: The crystal is made of acrylic and is in very nice condition, with normal microscratches. Dial: The dial has small signs of wear. It has the original lume on the dial and hands. None of the lume is missing on the dial. Hands: The hands are original with Tritium lume. Noticeable cracking in the minute hand. Strap/Bracelet: The bracelet has minimal stretch and it fits up to a 7.2 inch wrist. It is unpolished with normal signs of wear. Buckle/Clasp: The original Rolex-signed clasp is unpolished, with typical signs of wear.

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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