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Omega SeaMaster 300 no date ref 165024, 1963 — view 1 of 6
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Omega SeaMaster 300 no date ref 165024, 1963

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Omega (maker)
Date
1963
Country of origin
Switzerland
Object type
Wristwatch
Dimensions
Case 42 mm
Stock no.
W-3525
Credit line
Dealer listing, Bulang & Sons (W-3525)
Catalogue title (original)
Omega SeaMaster 300 no date ref 165024 (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-3525), this is a wristwatch by Omega, made in Switzerland, dated 1963. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Recorded dimensions: Case 42 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

At the end of the 1940s, the first Omega Seamaster debuted, blending the elegance of a dress watch with the rugged durability required by military timepieces from WWII. Its innovative O-ring gasket provided superior water resistance, setting the stage for a long lineage of dependable sport watches. As recreational diving gained popularity, Omega began developing more specialized underwater tools. In 1957, the Seamaster 300 was introduced as Omega’s first true professional dive watch, featuring a unidirectional rotating bezel, luminous markers, and a genuinely water-resistant case—hallmarks that helped define the modern dive watch. As we know you guys love a watch built for adventure—and it’s getting harder to find these pieces in such great condition—the Omega Seamaster 300 remains one of the coolest tool watches out there and still offers strong value in today’s market. The dial has developed a beautiful patina, with warm yellow-toned hour markers. The hands are in good condition and match the markers nicely. We believe the hands are slightly later replacements; a 1963 example like this would originally have been born with baton hands. Nevertheless, the overall aesthetic is spot on. The asymmetrical case is strong and well-preserved all around. Inside beats the automatic, red-gilded Omega Caliber 552, which has been fully serviced by our watchmaker. We’ve paired this Seamaster with our Bulang & Sons rubber Nautic strap—a combination we think looks especially sharp. Love what you see? Let’s get this classic Seamaster on your wrist ! Specifications: Omega Seamaster 300 reference 165.024 63 42mm steel case with twisted lugs , non screw down crown 12-3-6-9 dial layout dial Sword hands Calibre 552 automatic movement Movement Serial 203xxxxx dating to 1963 Bulang and sons “Nautic” 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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