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Blancpain Fifty Fathoms "No Rad" Date, early 1960

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Blancpain (maker)
Date
early 1960
Country of origin
Switzerland
Object type
Wristwatch
Dimensions
Case 41 mm
Stock no.
W-3356
Credit line
Dealer listing, Bulang & Sons (W-3356)
Catalogue title (original)
Blancpain Fifty Fathoms "No Rad" Date (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-3356), this is a wristwatch by Blancpain, made in Switzerland, dated early 1960. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Recorded dimensions: Case 41 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 Fifty Fathoms was originally developed in collaboration with the French Navy’s elite combat divers—and its legacy lives on today, even in modern pop culture, thanks to the recent Blancpain × Swatch Bioceramic Scuba collection. But if you’ve got the Swatch, you really need to experience the original. This is a desirable 41mm example in beautiful, honest condition—exactly what we love to see. The name Fifty Fathoms might sound unusual, but it refers to a British unit of measurement. A fathom equals about six feet, so fifty fathoms translates to roughly 91 meters—close to 300 feet—the maximum depth divers could reach with the technology available at the time. Fifty Fathoms watches have seen serious military use over the decades, trusted by forces from France, Germany, Sweden, Norway, Denmark, Finland, and most famously, the U.S. Navy. This particular version is the highly sought-after "No Radiations" model, often nicknamed the “No-Rad.” What makes it special? That iconic yellow-and-red crossed-out radiation symbol on the dial. It signified that no radium was used in the luminous material—a move made in the early 1960s as the health risks of radium became more widely known. The “No Rad” logo offered peace of mind to both professional and recreational divers. Due to their historical significance—and that instantly recognizable symbol—these models are now highly prized by collectors. Blancpain has even released tribute editions of the Fifty Fathoms No Rad, cementing its place in the brand’s history. The matte case is in fine condition with a beautiful luminous rotating dive bezel. The dial remains glossy, featuring an applied Blancpain logo, a date window, warm yellow patina on the lume, and a handsome pencil-style handset with matching yellow lume. We’ve paired this iconic diver with one of our Nautic straps—similar to the original rubber straps these “fifties” were delivered with back in the day. The automatic movement (based on an A. Schild caliber AS.1700) has been fully serviced by our watchmaker. For collectors and enthusiasts, the "No Rad" is more than just a beautiful timepiece—it’s a symbol of a bygone era when watches were true tools built for survival. Let’s talk. Specifications: Blancpain Fifty Fathoms “no rad “ date Serial 301xxx dating to the early 1960’s Matte Steel 41mm case Black Dial chapter ring , pencil hands and “ no Radiation “ logo Original bakelite bezel insert Automatic movement , based on an A.Schild AS.1700 movement Comes on the pictured Bulang and Sons Nautic weave rubber strap Fully serviced by our watchmaker

Historical context

Modern Mechanical Horology (1945 – 1969)

Tool watches for divers, pilots and astronauts; electric watches anticipate the electronic age.

The classic era of the mechanical wristwatch: dive watches, chronographs for motor racing and space flight, GMT watches for jet travel, slim dress watches, automatic calendars, and the rise of Japanese manufacturers alongside Swiss, American, German and Soviet industries.

Read the period in the timelineMore wristwatches from this periodEarlier: Golden Age of Mechanical Watchmaking

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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