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18ct yellow gold Corum "Spirales" bracelet watch with Chalcedony dial, 1970 — view 1 of 2
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Wristwatches · Wristwatch

18ct yellow gold Corum "Spirales" bracelet watch with Chalcedony dial, 1970

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Corum (maker)
Date
1970
Country of origin
Switzerland
Object type
Wristwatch
Materials / technique
yellow gold
Dimensions
Case 40 mm
Stock no.
G3597
Credit line
Dealer listing, Somlo Antiques (G3597)
Catalogue title (original)
18ct yellow gold Corum "Spirales" bracelet watch with Chalcedony dial. Made 1970 (English)

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Record summary

Catalogued by Somlo Antiques (dealer), London (stock number G3597), this is a wristwatch by Corum, made in Switzerland, dated 1970. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Materials and techniques recorded by the source: yellow gold. Recorded dimensions: Case 40 mm. The record is illustrated with 2 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

Corum is a Swiss watchmaking company founded in 1955 by René Bannwart. Originally starting his watchmaking career at Patek Philippe in 1933, then moving to OMEGA in 1944, Bannwart finally left the company to establish his own brand along with his uncle Gaston Ries. René named his company "Corum", which is a simplification of the Latin word Quorum, a word referring to the minimum number of people required to hold discussions and make decisions in a deliberative assembly. The logo follows a similar ingenious origin, with a key pointing toward the sky, symbolising riddles, mystery, innovation, and watchmaking precision. Brand: Corum Made: 1970 Model: Bracelet watch Reference: - Calibre: ETA 2512 Movement: Manual Material: 18ct yellow gold & Chalcedony Features/complications: "Spirales" bracelet Dial: Chalcedony dial featuring 18ct yellow gold dauphine hands Case dimensions: 40mm Bracelet/strap: 18ct yellow gold bracelet approximately 165mm in length Accessories: N/A SKU: 3597

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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