
Wristwatches · Wristwatch
Large Size Omega Constellation Extra Flat Yellow Gold, ref. 151.0035, circa 1972
- Maker / attribution
- Omega (maker)
- Date
- c. 1972
- Historical period
- Quartz Revolution (1969 – 1990)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Materials / technique
- 18K Yellow-Gold
- Stock no.
- CUR570
- Credit line
- Dealer listing, Watches of Knightsbridge (CUR570)
- Catalogue title (original)
- Large Size Omega Constellation Extra Flat 151.0035 Yellow Gold (English)
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Record summary
Catalogued by Watches of Knightsbridge (dealer), London (stock number CUR570), this is a wristwatch by Omega, made in Switzerland, dated c. 1972. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Materials and techniques recorded by the source: 18K Yellow-Gold. 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 — Watches of Knightsbridge
The Omega Constellation Chronometer Extra-Flat, reference 151.0035, circa 1972. This rare Constellation model features a large 18k solid gold rectangular case with “cut corners” and houses an ultra-slim Omega calibre 712 automatic movement. The dial is signed “OM Swiss Made OM” at 6 o’clock which was Omega’s designation mark used to indicate that the dial is made of solid gold (Or Massif). Overall the watch remains in excellent original condition and has been recently serviced by an independent watchmaker.
Specifications — Watches of Knightsbridge
Reference: 151.0035; Metal: 18K Yellow-Gold; Movement: Automatic Chronometer, Cal. 712
Historical context
Quartz Revolution (1969 – 1990)
Seiko's Astron begins mass quartz timekeeping; traditional industries contract sharply.
Quartz and digital watches transformed the market after 1969. Swiss employment collapsed, Japanese and Hong Kong production soared, and the Swatch (1983) helped the Swiss industry recover; mechanical watches survived as luxury goods.
Read the period in the timelineMore wristwatches from this periodEarlier: Modern Mechanical Horology
Atlas type guide
Wristwatches
Bracelet watches were worn by women from the early nineteenth century — Breguet made one for Caroline Murat, Queen of Naples, in 1810–12 — but the wristwatch only became a man's instrument with military use and aviation in the early twentieth century. Between the World Wars it overtook the pocket watch; the 1920s and 1930s brought rectangular Art Deco cases, water-resistant cases and the first automatic winding systems.
After 1945 the wristwatch became a carrier of identity — dress watches, sports and dive watches, chronographs, calendars — produced by Swiss, American, Japanese, German, Soviet and Chinese industries. The quartz revolution after 1969 and the mechanical renaissance since the 1990s, including the rise of independent watchmakers, complete the story.
What to look for
- The reference number (between the lugs or inside the case back) and serial number, the starting point for dating.
- The calibre: its maker and number are often stamped under the dial or on the bridge.
- Originality of dial, hands and crown — refinished ('redial') dials are common.
- Case material marks: 18K/750, 14K/585, stainless steel, gold-filled, plated.
Dating clues
- Wire-lug cases: before c. 1925.
- Water-resistant screw-down cases: from 1926.
- Quartz movements: from 1969; sapphire crystals widespread after c. 1980.
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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