
Wristwatches · Wristwatch
IWC Ingenieur Yellow Gold Silver Dial Ref 866, early 1970s
- Maker / attribution
- IWC (maker)
- Date
- early 1970s
- Historical period
- Quartz Revolution (1969 – 1990)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Materials / technique
- yellow gold
- Dimensions
- Case 37 mm
- Stock no.
- W-2621
- Credit line
- Dealer listing, Bulang & Sons (W-2621)
- Catalogue title (original)
- IWC Ingenieur Yellow Gold Silver Dial Ref 866 (English)
View the source record (dealer listing) ↗ (opens another website in a new tab)Suggest a correction
Record summary
Catalogued by Bulang & Sons (dealer), Copenhagen (stock number W-2621), this is a wristwatch by IWC, made in Switzerland, dated early 1970s. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Materials and techniques recorded by the source: yellow gold. Recorded dimensions: Case 37 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 — Bulang & Sons
The International Watch Co’s Ingenieur was their version of Rolex’s Milgauss and Omega’s Railmaster. Designed for engineers working in high magnetic field environments, the movement is encased in a soft iron case back to make a Faraday cage around it. There are lots of subtle and cool elements to this watch – we love it! The amagnetic watch is housed in a cool sized 37mm yellow gold case that remains in outstanding condition throughout. The silver dial is in lovely condition – we particularly love the Ingenieur logo on these, with the stylized lightning bolt through the text. The dial has a date function that sits in a yellow gold aperture. The watch will come on the pictured IWC leather strap with gold plated IWC buckle. The automatic IWC calibre 8541b movement has been fully serviced by our watchmaker. This is a great watch with great presence on the wrist. Please get in touch to have a chat about it today! Specifications: - Ingenieur reference 866 - Dates to early 1970s - 37mm yellow gold case - Soft iron inner case back - Silver soleil-finish dial - Pictured IWC strap with gold plated IWC buckle - IWC calibre 8541b automatic movement - Movement serial 196xxxx - Fully serviced by our watchmaker - Includes a handmade leather watch pouch
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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