
Wristwatches · Wristwatch
Omega Seamaster 300 Big Triangle & Sword Hands (Ref. 165.024), 1968
- Maker / attribution
- Omega (maker)
- Date
- 1968
- Historical period
- Modern Mechanical Horology (1945 – 1969)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Dimensions
- Case 42 mm
- Stock no.
- Product 8056429871287
- Credit line
- Dealer listing, Huntington Company (product 8056429871287)
- Catalogue title (original)
- 1968 Omega Seamaster 300 Big Triangle & Sword Hands (Ref. 165.024) (English)
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Record summary
Catalogued by Huntington Company (dealer) (stock number Product 8056429871287), this is a wristwatch by Omega, made in Switzerland, dated 1968. 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 — Huntington Company
Worth The Read n 1948, postwar Europe saw the rise of water-resistant wrist watches, inspired by military innovations during World War II. Omega, founded in 1848, introduced the Seamaster 300 CK 2913 in 1957, the first true dive watch of the line. This precision-grade watch, part of the "holy trinity" of professional-grade watches, featured a two-part bezel, arrow hands, and an auto-winding caliber 500/501. Production continued until 1960 when the 14755 replaced it with the 14755, which featured arrow hands and an auto-winding caliber 550/552. In 1962, the 165.014 introduced the 6 digit case number system, featuring a caliber 552 and a few different hand and dial combinations. In 1962, the second generation of the SM300 was introduced, featuring a 42mm case size and a turn of the straight lugs. The watch was made by two primary manufacturers, Huguenin Freres (HF) and Centrale Boites (CB), and some later cases can be found bearing Piquerez markings. The 2nd generation SM300 used three different types of hands: sword, baton, arrow hands, and a sword hour hand. A low profile Naiad non screw down crown was used until 1968 when it was replaced by a 5mm deep screw down crown. The watch can be found with two distinct dial variations: the first had squared off lume plackets of equal size at 3, 6, 9, and 12 o'clock each with a corresponding white arabic numeral, and the second replaced the 12 o'clock numeral and lume placket with an oversized inverted lume triangle. The Big Triangle version of the SM300 was produced for the civilian market, identical in all respects to the MoD version except for the fixed lug bars and military markings. The dial symmetry and scarcity of the non-date version have led to increased demand, with Big Triangle versions striking highest. The crown has a low profile, maintaining a sleek overall case design. The original date-matched bracelet and 516 end links are rare, but the 1039 bracelet is still present in good condition. Specifications Reference: 165.024 Model: Seamaster 300 Movement: Automatic Year: 1968 Contents: Watch Only Case: The 42mm case is in nice condition and looks to have been lightly polished in the past. The bakelite bezel has no cracks and the condition is phenomenal. The alignment is slightly off, but it fully clicks. The bezel can be realigned before being shipped. Dial: The dial is one of the best we've seen when it comes to Big Triangles. It is all original and that includes the sword hands. All this can be seen under the original Omega-stamped crystal. Strap & Buckle: The bracelet is tight and is the original, fully linked size. It also has the stretch links closer to the clasp.
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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