
Wristwatches · Wristwatch
Jaeger le Coultre 2701 Duo Date, 1930s
- Maker / attribution
- Jaeger le Coultre (maker)
- Date
- 1930s
- Historical period
- Golden Age of Mechanical Watchmaking (1900 – 1945)
- Country of origin
- Unrecorded in source
- Object type
- Wristwatch
- Dimensions
- Case 32 mm
- Stock no.
- W-604
- Credit line
- Dealer listing, Bulang & Sons (W-604)
- Catalogue title (original)
- Jaeger le Coultre 2701 Duo Date (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-604), this is a wristwatch by Jaeger le Coultre, dated 1930s. The Atlas places it in the Golden Age of Mechanical Watchmaking period (1900 – 1945) of its Wristwatches collection. Recorded dimensions: Case 32 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 Rare JLC Sector Dial Day Date Today we are offering one of the rarest Jaeger Le Coultre watches – the early double calendar watch with French day window and outer date track. The beautiful sector dial remains in stunning original condition with vibrant red outer date track, which is complemented by a red-text day disk and red-tipped centre-sweep date hand. The blued-steel hands are in perfect condition as is the seconds hand in the small seconds dial in the lower half of the dial. The steel case is manufactured from Staybrite steel, an early corrosion resistant steel alloy used by the Swiss matchmaking industry in the 1930s and 40s. First wristwatch ever with an Calender function! The watch has been fully serviced by our watchmaker and will come with a Bulang and Sons strap as seen in the photographs. Specifications - Dates to the 1930s - Serial 66317 - Cal.412 Uniplan - Staybrite steel 32mm case - Sector dial with red date calendar - First wristwatch calendar watch ever made - Fully serviced by our watchmaker - Includes a handmade single leather watch pouch
Historical context
Golden Age of Mechanical Watchmaking (1900 – 1945)
The wristwatch displaces the pocket watch; waterproof cases, self-winding and grand complications.
The wristwatch overtook the pocket watch. Military use in the First World War, aviation, water-resistant cases (1926), automatic winding (1923–31), rectangular Art Deco designs and early chronographs and calendars defined the period.
Read the period in the timelineMore wristwatches from this periodEarlier: Industrial Revolution
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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