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Croton Aviator Sea Diver Chronograph (Ref. 106/903006), 1970s — view 1 of 6
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Wristwatches · Wristwatch

Croton Aviator Sea Diver Chronograph (Ref. 106/903006), 1970s

DocumentedDocumented from a dealer's listing; attribution and date as stated by the dealer.
Maker / attribution
Unrecorded in source
Date
1970s
Country of origin
Unrecorded in source
Object type
Wristwatch
Dimensions
Case 38 mm
Stock no.
CPCAUTDV-3
Credit line
Dealer listing, Craft & Tailored (CPCAUTDV-3)
Catalogue title (original)
1970s Croton Aviator Sea Diver Chronograph (Ref. 106/903006) (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 CPCAUTDV-3), this is a wristwatch, dated 1970s. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Recorded dimensions: Case 38 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 — Craft & Tailored

The Chronomaster range of watches from Nivada Grenchen and Croton were produced in a time when adventures and exploration were at the forefront of what was happening in the world and within the pop culture of the 1960s. Within the expansive world of vintage timepieces, there is no uncertainty that vintage tool watches hold a particular position within the minds of numerous collectors. The 1960s and 1970s were what we now know as the golden era of sports watch design where the form of a watch needed to meet its intended function to support the adventures that the watch was created for. Nivada Grenchen or Croton in the States was founded in Grenchen, Switzerland in the 1920s by Jacob Schneider, Nivada Grenchen was actually one of the first watch brands to manufacture automatic watches. Nevada encompassed another modern wristwatch innovations as well, creating waterproof and “rustless” watches that would stand up to the rigors of the outdoor adventures they were creating a watch for. This ref. 106/903006 utilizes a Landeron cal. 248 chronograph movement and features high contrasting white baton-style hands. The Croton ref. 106/903006 features a large stainless steel 38mm stainless steel case with long and angled lugs. The case is outfitted with an aluminum minute/hour bi-directional bezel that is not only unique but useful. The simple and no-nonsense dial is beautifully executed with a flash of red in the rightmost sub-dial that offers a 5-minute count down interval. The Aviator Sea Diver ref. 106/903006 covers all of these classic sport watch ques from this golden era of classic sports watch design. SPECS Stock # CPCAUTDV-3 Brand Croton Style Aviator Sea Diver Model 106/903006 Serial 27XXX Size Men's Material SS Dial Glossy Black Millimeters 38mm Bracelet 2pc Handmade Leather Strap CASE & BRACELET The excellent case has been lightly polished in the past and retains its chamfers down the lugs and exhibit honest signs of use. The black hours/minutes bezel shows some honest signs of use and remains deep black in coloration. The unsigned crown and top pusher remain original, the bottom pusher was replaced prior to our acquisition. The caseback retains all of its original factory engravings in clear and visible condition. The watch will come supplied on a 2pc handmade leather strap. DIAL & HANDS The glossy black dial is in wonderful original condition, the white text is highly visible and easy to read. The tritium lume plots have taken on an excellent yellow patina and show no degradation under U.V. light inspection. The original tritium hands match the dial perfectly, the hand is starting the chip on the minute hand towards the center of the hand stack, under U.V. light inspection the tritium hands show no degradation or lume loss. ACCESSORIES

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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