
Wristwatches · Wristwatch
Blancpain wristwatch, USA Twenty-Dollar Coin Wristwatch, circa 1980s
- Maker / attribution
- Blancpain (brand / maker)
- Date
- c. 1980s
- Historical period
- Quartz Revolution (1969 – 1990)
- Country of origin
- United States
- Object type
- Wristwatch
- Materials / technique
- 18k yellow gold
- Dimensions
- diameter 33 mm
- Auction house
- Antiquorum auction archive, Geneva
- Lot
- Lot 384-6
- Credit line
- Auction lot record: LOT 6, Hong Kong March 13, 2026
- Catalogue title (original)
- BLANCPAIN, USA TWENTY-DOLLAR COIN WRISTWATCH, 18K YELLOW GOLD (English)
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Record summary
Catalogued by Antiquorum auction archive, Geneva (lot Lot 384-6), this is a wristwatch by Blancpain, made in United States, dated c. 1980s. 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. Recorded dimensions: diameter 33 mm. The record is illustrated with 3 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
Antiquorum catalogue description
A fine and very rare, manual winding 18k yellow gold coin watch made by “united state of america-twenty” coin.
Lot specifications (Antiquorum)
Model: USA Twenty-Dollar Coin wristwatch; Movement No.: 634407; Case No.: 23397; Bracelet: Blancpain gold plated pin buckle; Caliber: R 576; Diameter: 33mm.; Weight: 25gr. (approx.); Signature: dial, case and movement
Inscriptions & marks
dial, case and movement
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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