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Zenith Defy El Primero, ref. 95.9002.9004/78.R590, 2020 — view 1 of 6
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Wristwatches · Wristwatch

Zenith Defy El Primero, ref. 95.9002.9004/78.R590, 2020

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Zenith (maker)
Date
2020
Country of origin
Switzerland
Object type
Wristwatch
Dimensions
Case 44 mm
Stock no.
vws1977
Credit line
Dealer listing, Vintage Watch Specialist (vws1977)
Catalogue title (original)
Zenith Defy El Primero - Model Reference 95.9002.9004/78.R590 - 2020 - Box and Papers (English)

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Record summary

Catalogued by Vintage Watch Specialist (dealer), United Kingdom (stock number vws1977), this is a wristwatch by Zenith, made in Switzerland, dated 2020. The Atlas places it in the Contemporary Horology period (2010 – Present) of its Wristwatches collection. Recorded dimensions: Case 44 mm. 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 — Vintage Watch Specialist

Superb Zenith Defy El Primero Model reference: 95.9002.9004/78.R590, Issued in 2020 and Supplied with Original Box and Paperwork, Excellent Condition. In 1969, at a press conference held on January 10th, Zenith announced the imminent launch of the first fully integrated, high-frequency, automatic chronograph movement. Codenamed 3019 PHC, this movement was renamed “El Primero”, which means “the first” in Spanish. What’s On Offer The high-frequency El Primero 21 - 1/100th chronograph in a 44mm titanium DEFY case, paired with a textured blue rubber Zenith strap and deployant clasp. Its blue automatic movement features two independent high-frequency escapements beating at 50Hz for the chronograph function and 5Hz for timekeeping. Encapsulated underneath Sapphire crystal glass, the blue skeleton dial is equipped with Rhodium-plated hands and index hour markers, also with the display back so you can when held up to the light see right through parts of the movement. 1/100th of a second Chronograph: - Central chronograph hand that makes one turn each second - 30-minute counter at 3 o'clock - 60-second counter at 6 o'clock - Chronograph power-reserve indication at 12 o'clock. Additional information Made from Case: Brushed Titanium Dial: Skeleton dial with grey and blue rimmed subdials Crystal: Anti-reflective scratch-resistant sapphire Bracelet: T extured blue rubber strap with titanium double-folding clasp Technical specifications Winding: Automatic Movement Type: Mechanical Calibre: El Primero 9004 Jewels: 53j Waterproof: 100 meters when new Power reserve: 50hrs Purchase details Condition: Superb Model Reference: 95.9002.9004/78.R590 Date of issue: 2020 Dimensions Width (without crown): 44mm Lug width: 23mm Lug height: (lug to lug) 50mm Wrist size: Adjustable More Modern Sports Watches

Historical context

Contemporary Horology (2010 – Present)

Silicon components, connected watches, optical-lattice research clocks and a thriving independent scene.

Smartwatches became the world's best-selling watches, while mechanical watchmaking focuses on craft, innovation (silicon components, new escapements) and independent makers.

Read the period in the timelineMore wristwatches from this periodEarlier: Mechanical Renaissance

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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