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Tudor Submariner Snowflake Blue dial Ref. 9411/0, 1978 — view 1 of 6
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Tudor Submariner Snowflake Blue dial Ref. 9411/0, 1978

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Tudor (maker)
Date
1978
Country of origin
Switzerland
Object type
Wristwatch
Dimensions
Case 40 mm
Stock no.
W-2907
Credit line
Dealer listing, Bulang & Sons (W-2907)
Catalogue title (original)
Tudor Submariner Snowflake Blue dial Ref. 9411/0 (English)

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

Record summary

Catalogued by Bulang & Sons (dealer), Copenhagen (stock number W-2907), this is a wristwatch by Tudor, made in Switzerland, dated 1978. 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 — Bulang & Sons

The Tudor “Snowflake” nickname refers to Submariner models with reference numbers 7021/0, 7016/0, 9411/0 & 9104/0. This distinctive nickname comes from the watch’s signature design elements: square hour markers and the so-called “snowflake” hands. These hands were introduced by Tudor to improve legibility in low-light and underwater conditions. Like other Tudor and Rolex Submariners, the Snowflake has a rich history, including military service. Tudor supplied these watches to naval forces, most notably the French Marine Nationale. At the Marine Nationale’s request, Tudor adapted the Submariner design to enhance underwater visibility—a modification that would define the brand’s Submariner aesthetic for years to come. The changes went beyond the hands. The hour markers became square, and the dial was offered in both black and blue. The case and bezel largely remained unchanged. Soon after the introduction of reference 7016/0, Tudor launched the 7021 /0 which was similar but included a date complication at 3 o’clock, echoing the design of its Rolex counterpart, reference 1680. Tudor Snowflake Submariners are not only visually distinctive but also carry significant horological and military heritage. These references are increasingly sought after by collectors and enthusiasts, and finding one in good condition is becoming ever more challenging. The watch we have here is a reference 9411/0 from 1978, featuring a date function. Its 40 mm case is in very nice condition, paired with a blue bezel insert that perfectly complements the matching blue dial. The dial retains its square hour markers filled with cream-colored lume, matching the lume on the hands. It is fitted with a single-pass strap, perfectly suited to the utilitarian nature that defines these classic dive watches.But as these guys are real “strap monsters” we decided to you give you some food for thoughts over here ! If you love cool iconic vintage divers:Get in touch and let’s talk! Specifications: Tudor Reference 9411/0 Submariner 40mm steel case Blue bezel insert Date function Blue snowflake dial with cream colour lume Serial 880xxx dating to 1978 Fitted with the photographed single pass strap Fully serviced by our watchmaker

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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