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Stainless steel Omega 1st Generation Seamaster 300 automatic wristwatch (Enamel bezel), 1961 — view 1 of 4
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Stainless steel Omega 1st Generation Seamaster 300 automatic wristwatch (Enamel bezel), 1961

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
OMEGA (maker)
Date
1961
Country of origin
Unrecorded in source
Object type
Wristwatch
Materials / technique
stainless steel
Dimensions
Case 38 mm
Stock no.
O.3389
Credit line
Dealer listing, Somlo Antiques (O.3389)
Catalogue title (original)
Stainless steel OMEGA 1st Generation Seamaster 300 automatic wristwatch (Enamel bezel). Made 1961 (English)

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Record summary

Catalogued by Somlo Antiques (dealer), London (stock number O.3389), this is a wristwatch by OMEGA, dated 1961. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Materials and techniques recorded by the source: stainless steel. Recorded dimensions: Case 38 mm. The record is illustrated with 4 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 — Somlo Antiques

During 1957 OMEGA embarked with the launch of a series of sports watches specifically designed for divers, scientists and racing drivers. Henceforth, the 'holy trilogy' of high-grade precision wristwatches were born, namely the CK2913 Seamaster 300, the CK2914 Railmaster and CK2915 Speedmaster. Although the OMEGA Seamaster was first introduced in 1948 it was not made for use underwater. The Seamaster 300 featured a two part bezel with a thin, outer portion in Bakelite displaying numerals used for diving and the case was adapted for use under water. Brand: OMEGA Made: 1961 Model: Seamaster 300 Reference: CKJ 2913-7 Calibre: 501 Movement: Automatic Material: Stainless steel Features/complications: Enamel bezel and Broad arrow hands Dial: Matt black dial with luminous outer minute track featuring arrow shaped hour markers with broad arrow hands and centre seconds hand Case dimensions: 38mm Bracelet/strap: Leather strap Accessories: - SKU: 03389

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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