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Piaget Protocole 18K YG (Ref. 90154) Black Dial, 1980s — view 1 of 6
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Wristwatches · Wristwatch

Piaget Protocole 18K YG (Ref. 90154) Black Dial, 1980s

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Piaget (maker)
Date
1980s
Country of origin
Switzerland
Object type
Wristwatch
Stock no.
PGP90154
Credit line
Dealer listing, Craft & Tailored (PGP90154)
Catalogue title (original)
1980s Piaget Protocole 18K YG (Ref. 90154) Black Dial (English)

View the source record (dealer listing) ↗ (opens another website in a new tab)Suggest a correction

Record summary

Catalogued by Craft & Tailored (dealer), Los Angeles (stock number PGP90154), this is a wristwatch by Piaget, made in Switzerland, dated 1980s. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. 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 — Craft & Tailored

Piaget is widely celebrated as being one of the most creative and esoteric watchmakers, with a deep foundation in Swiss watchmaking as the brand was established in 1874. The avant-garde approach to design isn't without a rigorous dedication to quality, which is expressed through the brand's inherent comprehension of what high luxury and fine watchmaking truly are. SPECS Stock # PGP90154 Brand Piaget Style Protocole Model 90154 Serial 62XXXX Size Men's/ Unisex Material 18K Yellow Gold Dial Black W/ Gold Font Millimeters 26x30.5 Strap 2pc Black Strap W/ 18K YG Piaget Tang Buckle CASE & BRACELET The perfectly proportioned 18K yellow gold case is a treat to have on wrist. The mostly rectangular case features beveled corners for a more architectural shape along with an ornate vertical texture to the surface and a subtle curve for added shape. The case exhibits some gentle wear and some minor tool marks with no notable displays of previous polishing present. The hallmarks and factory engravings remain very crisp and deep throughout. The Piaget signed crown is original. The watch comes supplied on a 2pc black strap with the original 18K yellow gold Piaget tang buckle. DIAL & HANDS The original glossy black dial with printed gold text and Roman numerals is very well preserved, showing no damage or visible age. The gold dauphine hands are in excellent condition as well. ACCESSORIES None. The watch is keeping time, but the service history is unknown. A movement service can be provided upon request.

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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