
Wristwatches · Wristwatch
IWC Ingenieur Silver Dial Ref. 666, 1963
- Maker / attribution
- IWC (maker)
- Date
- 1963
- Historical period
- Modern Mechanical Horology (1945 – 1969)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Materials / technique
- silver
- Dimensions
- Case 36.5 mm
- Stock no.
- W-3099
- Credit line
- Dealer listing, Bulang & Sons (W-3099)
- Catalogue title (original)
- IWC Ingenieur Silver Dial Ref. 666 (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-3099), this is a wristwatch by IWC, made in Switzerland, dated 1963. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Materials and techniques recorded by the source: silver. Recorded dimensions: Case 36.5 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
When you think of IWC, chances are models like the sleek Portuguese chronos, the tough Aquatimers, or the unmistakable Big Pilot come to mind. Maybe even the 1970s-era Ingenieur SL—the one designed by the great Gérald Genta. With its integrated bracelet and bold, angular case, it’s become one of the brand’s most celebrated designs. But here’s the twist: the Ingenieur line actually started almost 20 years before Genta put his pen to paper. IWC introduced its Ingenieur line as early as 1954 with the reference 666—coincidentally the same year Rolex launched their answer to the challenge of magnetic resistance: the reference 6541 Milgauss. In other words, IWC was already positioning itself as a pioneer in technical watchmaking, standing at the forefront of innovation during that era! The Reference 666 Ingenieur marked IWC’s first foray into producing a purpose-built anti-magnetic tool watch designed for scientific and industrial use. Launched in 1955, the Ingenieur borrowed the soft iron inner case from the WWII-era Mark XI military watch, enhancing it with a new in-house automatic movement. Originally offered in both date and non-date versions, the Ref. 666 remains one of the most elusive—and arguably underrated—vintage IWC models on the market today. At hand is a lovely example of the no-date model, housed in a 36.5mm case with the waterproof “Fish” crown, a screw-down case back, and an inner Faraday cage to provide anti-magnetic protection. The silver soleil dial features the elegant “International Watch Company” script and the word “Ingenieur” with a thunderbolt motif. Additionally, it features gold hour markers, a “dot-dot” minute track, and classic dauphine hands. This fine IWC is fitted with a Bulang and Sons strap and has been fully serviced by our watchmaker. These timepieces are legendary, yet still manage to fly under the radar—and the 🧲! Specifications: - IWC Reference 666 Ingenieur no date - Steel case in 36.5mm, with “Fish” crown and inner Faraday-style anti-magnetic case back - Case No 652xxx / Movement serial no 167xxxx dating to 1963 - Silver dial with golden indexes and dauphine-style hands - Automatic “Pellaton” winding system cal. 852 - Bulang and Sons leather strap - Fully serviced by our watchmaker
Historical context
Modern Mechanical Horology (1945 – 1969)
Tool watches for divers, pilots and astronauts; electric watches anticipate the electronic age.
The classic era of the mechanical wristwatch: dive watches, chronographs for motor racing and space flight, GMT watches for jet travel, slim dress watches, automatic calendars, and the rise of Japanese manufacturers alongside Swiss, American, German and Soviet industries.
Read the period in the timelineMore wristwatches from this periodEarlier: Golden Age of Mechanical Watchmaking
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.
Related records
Pocket Watches · c. 1950
IWC Pocket Watch, c. 1950
Antiquorum auction archive, Geneva
Pocket Watches · c. 1980
IWC pocket watch, ref. 5301, c. 1980
Antiquorum auction archive, Geneva
Wristwatches · originally sold in April 2016 (per the lot record)
IWC Aquatimer Chronograph Cousteau, ref. IW3768, originally sold in April 2016
Antiquorum auction archive, Geneva
Wristwatches · c. 2010s
IWC wristwatch, ref. IW371918, Aquatimer, circa 2010s
Antiquorum auction archive, Geneva
Wristwatches · 1945
Wristwatch by Eterna, 1945
Museum Rotterdam
Wristwatches · c. 1945
Breitling Premier, ref. 790, c. 1945
Antiquorum auction archive, Geneva
Wristwatches · c. 1945
Universal Genève Uni-Compax, ref. 22492, c. 1945
Antiquorum auction archive, Geneva
Wristwatches · c. 1950s
Baume & Mercier wristwatch, c. 1950s
Antiquorum auction archive, Geneva
