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Zenith, Ref: A3736, Super Subsea Chronograph, Ci, c. 1969 — view 1 of 4
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Wristwatches · Wristwatch

Zenith, Ref: A3736, Super Subsea Chronograph, Ci, c. 1969

DocumentedDocumented from an auction catalogue; attribution as stated by the auction house.
Maker / attribution
Zenith (maker)
Date
c. 1969
Country of origin
Switzerland
Object type
Wristwatch
Lot
Item 61564374
Credit line
Auction lot record: lot 54227, Watches & Fine Timepieces - New York #5363, Heritage Auctions (2018), via LiveAuctioneers
Catalogue title (original)
Zenith, Ref: A3736, Super Subsea Chronograph, Ci (English)

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Record summary

Catalogued by LiveAuctioneers auction archive (lot Item 61564374), this is a wristwatch by Zenith, made in Switzerland, dated c. 1969. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. The record is illustrated with 4 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

Lot description — Heritage Auctions

Zenith, Ref: A3736, Super Subsea Chronograph, Circa 1969 Case: 40 mm, stainless steel, two body case, with screw down caseback. No. 221D320 Dial: Matte black with luminous applied batons, silver subdials for running seconds, 30 minute counter, and 12 hour counters. internal rotating time elapse bezel. Luminous baton hands. Movement: Zenith signed Martel Cal. 146HP, manual wind, column wheel actuated, lateral clutch chronograph Band: Zenith signed Guy Freres stamped ladder bracelet, with diver extension #4/69 Signed: Zenith on case, dial, movement, bracelet

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

Chronographs and split-seconds watches

A chronograph is a watch with an additional seconds hand that can be started, stopped and returned to zero independently of the timekeeping. Louis Moinet built an early example in 1816 and Nicolas Rieussec a recording 'chronographe' in 1821; Adolphe Nicole's heart-shaped reset cam (patented 1862) made the modern return-to-zero possible. Split-seconds (rattrapante) chronographs add a second hand that can be stopped for intermediate times; flyback chronographs restart instantly.

Chronographs were essential tools for doctors (pulsometer scales), artillery (telemeter), engineers and sport. In wristwatches, Valjoux, Venus, Lemania and later the automatic chronographs of 1969 (Zenith El Primero, the Chronomatic Calibre 11 group and Seiko 6139) are milestones.

What to look for

  • Push-pieces on the case band or a single button in the crown (monopusher).
  • Subsidiary registers for minutes and hours; tachymeter, telemeter or pulsometer scales.
  • Column wheel versus cam control visible in the movement.
  • Calibre markings of specialist makers (Valjoux, Lemania, Venus, Landeron).

Dating clues

  • Pocket chronographs with heart cam reset: after 1862.
  • Wrist chronographs: from c. 1910; two-button designs from the 1930s.
  • Automatic chronographs: from 1969.

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.

Read next:Flyback chronographChronograph

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