
Wristwatches · Wristwatch
Omega Seamaster 300 (Ref. 165.024), 1966
- Maker / attribution
- Omega (maker)
- Date
- 1966
- Historical period
- Modern Mechanical Horology (1945 – 1969)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Stock no.
- OMSM300165024
- Credit line
- Dealer listing, Craft & Tailored (OMSM300165024)
- Catalogue title (original)
- 1966 Omega Seamaster 300 (Ref. 165.024) (English)
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Record summary
Catalogued by Craft & Tailored (dealer), Los Angeles (stock number OMSM300165024), this is a wristwatch by Omega, made in Switzerland, dated 1966. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. 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 — Craft & Tailored
There is something special about the early vintage Omega Seamasters that embodies the "golden era" of dive watches of the 1960s-1970s. Omega has a long history and heritage in dive watches, which date back to the 1930s. The seahorse-adorned case back of the Seamaster series pays tribute to Neptune, the Roman god of the sea. The seahorse logo was conceived by engraver Jean-Pierre Borle. He was inspired by an image of Neptune driving a chariot pulled by seahorses, which is why the Omega seahorses are depicted wearing bridles. The reference 166.024 has a specific feeling and look that centers it as one of the most desirable vintage Omega diving watches ever produced by the brand. The bi-directional ratcheting bezel, luminous bezel insert, high visibility dial, and overall larger size for a watch of its time period allow it to remain relevant to today's sizing trends. This Seamaster 300 is exceptional in so many ways, from the vivid patina, sword hands, and the original Omega bracelet. The Seamaster 300 references are becoming harder and harder to find as they have been a favorite among collectors and have Stock # OMSM300165024 Brand Omega Style Seamaster 300 Model 165.024 Serial 247XXXXX Size Men's Material Stainless Steel Dial Matte Black Millimeters 42 Bracelet Omega 1039 Flat-Link Stretch Bracelet W/ 516 End Pieces CASE & BRACELET The handsome twisted lug case remains in exceptional, minimally polished condition, showing crisp lines, angles, and dimensions throughout with honest signs of lighe use present. The original "Flat 1" bakelite ratcheting bezel is very well-preserved, showing no cracks but normal signs of gentle use, and features a vivid patina to the lume that matches the dial. The case back retains its original Seamster medallion, however, it has faded from wear. The original Omega 1039 stainless steel "flat-link" bracelet with 516 end pieces is long and in great condition, retaining its stretch links toward the clasp. The bracelet exhibits light stretch for its style and age, retains 25 links, and will fit up to an 8 1/4-inch wrist. DIAL & HANDS The original matte black dial is in. exceptionally well-preserved condition, showing no damage or notable elements of age. The original hesalite crystal exhibits some light wear and even crazing throughout which is common for original crystals from this era, however, any mark seen in the photos is on the crystal and not the dial itself. the tritium lume plots have achieved a deep vivid yellow-orange patina and exhibit no degradation under UV light inspection, the 8 o'clock lume plot features a darker patina but does not show degradation. The original tritium sword hands have aged a shade lighter than the dial but coordinate with the overall aesthetic of the watch, under UV light inspection the hour and minute hands exhibit no degradation, and the second's hand appears to have been previously professionally stabilized and retains most of its original lume ACCESSORIES
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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