
Wristwatches · Wristwatch
Omega wristwatch, ref. 2850, Seamaster Xvi Original Fitted Box, circa 1956
- Maker / attribution
- Omega (brand / maker)
- Date
- c. 1956
- Historical period
- Modern Mechanical Horology (1945 – 1969)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Materials / technique
- 18k pink gold
- Dimensions
- diameter 34 mm
- Auction house
- Antiquorum auction archive, Geneva
- Lot
- Lot 368-22
- Credit line
- Auction lot record: LOT 22, Geneva, May 11-12, 2024
- Catalogue title (original)
- OMEGA, SWITZERLAND, REF. 2850 S.C., SEAMASTER XVI, ORIGINAL FITTED BOX, 18K PINK GOLD (English)
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Record summary
Catalogued by Antiquorum auction archive, Geneva (lot Lot 368-22), this is a wristwatch by Omega, made in Switzerland, dated c. 1956. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Materials and techniques recorded by the source: 18k pink gold. Recorded dimensions: diameter 34 mm. The record is illustrated with 1 photograph.
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
Antiquorum catalogue description
A fine, limited, 18k pink gold, self winding wristwatch in celebration of the 1956 Melbourne Olympics
Lot specifications (Antiquorum)
Model: Seamaster XVI; Reference: 2850 S.C.; Movement No.: 15513433; Case No.: 194363; Bracelet: gold plated Omega buckle; Caliber: 471, 20 jewels; Diameter: 34; Signature: dial, case and movement; Accessories: original fitted box
Inscriptions & marks
dial, case and movement
Provenance
Property of a Swiss Gentleman
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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