
Wristwatches · Wristwatch
Patek Philippe Perpetual Calendar 3940J Second Series with Original Paper
- Maker / attribution
- Patek Philippe (maker)
- Date
- late 1980s
- Historical period
- Quartz Revolution (1969 – 1990)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Dimensions
- Case 36 mm
- Stock no.
- W-2466
- Credit line
- Dealer listing, Bulang & Sons (W-2466)
- Catalogue title (original)
- Patek Philippe Perpetual Calendar 3940J Second Series with Original Paper (English)
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Record summary
Catalogued by Bulang & Sons (dealer), Copenhagen (stock number W-2466), this is a wristwatch by Patek Philippe, made in Switzerland, dated late 1980s. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Recorded dimensions: Case 36 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
Watch trends come and go, but the mighty perpetual calendar is forever highly sought after by collectors. One current hot trend is the neo-vintage watch on leather strap and we believe we have the pinnacle of such a watch here with this stunning Patek Philippe ! This is a stunning Patek Philippe reference 3940 in yellow gold that features the second series dial. The star of the show is the dial. We believe there is no Perpetual calendar watches that have so much information on the dial - still the most easy to read timing and ofcourse dates ! We LOVE the sub dials , the hands , we could go on-and on ! At the height of the quartz crisis that decimated the Swiss watch industry, Patek released these watches with perpetual calendar complications in 36 mm cases. The beautifully proportioned case is in superb condition and this example has a solid case back. The calendar is in Geman and the watch comes with its original papers , stating a sale to an Austrian dealership. The watch is fitted with the pictured leather strap that has the original gold Patek buckle and also comes with the original Patek leather strap and a Patek box. We adore the 3940 and believe that it is still highly underappreciated with a lot of potential for the future. Calendarwatches is where it’s at in the current market, so get in touch to discuss this watch some more! Specifications: - Patek Philippe 3940J - 36mm yellow gold case with solid case back - Case serial 288xxxx - Perpetual calendar three dial layout with moonphase - German language calendar - Automatic movement Cal 240Q - Movement serial 772xxx - case serial 288xxxx dating to the late 1980s - Pictured leather strap plus an original Patek Philippe18k gold buckle - Comes with the original Patek leather strap - Original Patek papers and leather paper holder - Patek box - Fully checked 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
Calendar, moon-phase and perpetual calendar watches
Calendar complications range from a simple date to the perpetual calendar, which automatically allows for months of different lengths and leap years until 2100. Pocket watches with perpetual calendars were made in the eighteenth and nineteenth centuries; Patek Philippe made the first perpetual calendar wristwatch in 1925, and series production followed in 1941. The annual calendar (Patek Philippe, 1996) needs correction only once a year.
Moon-phase displays use a disc with two moons and 59 teeth advanced daily, approximating the 29.5-day lunation; more precise trains reduce the error to one day in over a century.
What to look for
- Apertures or subsidiary dials for day, date, month and leap year.
- Moon disc under a 'bosom' shaped aperture.
- Recessed correctors on the case band for setting the calendar.
Dating clues
- Triple-date wristwatches: popular c. 1940–1955.
- Perpetual calendar wristwatches: from 1925 (unique) and 1941 (series).
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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