Wristwatches · Wristwatch
Patek Philippe wristwatch, ref. 3565, Self-Winding Date, circa 1970
- Maker / attribution
- Patek Philippe (brand / maker)
- Date
- c. 1970
- Historical period
- Quartz Revolution (1969 – 1990)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Materials / technique
- 18k yellow gold
- Dimensions
- diameter 35 mm
- Auction house
- Antiquorum auction archive, Geneva
- Lot
- Lot 356-27
- Credit line
- Auction lot record: LOT 27, Hong Kong,November 25-26, 2022
- Catalogue title (original)
- PATEK PHILIPPE FOR “IOS” REF. 3565 / 1, SELF-WINDING, DATE, “IOS”; 18K YELLOW GOLD (English)
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Record summary
Catalogued by Antiquorum auction archive, Geneva (lot Lot 356-27), this is a wristwatch by Patek Philippe, made in Switzerland, dated c. 1970. The Atlas places it in the Quartz Revolution period (1969 – 1990) of its Wristwatches collection. Materials and techniques recorded by the source: 18k yellow gold. Recorded dimensions: diameter 35 mm. The record is illustrated with 2 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
Antiquorum catalogue description
18K yellow gold, self-winding, round-shaped, gentleman’s wristwatch, with snap-on case-back; gold colour dial with radial Roman numerals, “IOS” logo at 6 o’clock, and one horological complication:· Instantaneous date of the month (aperture et 3 o’clock)Case-back engraved with the mention “IOS / Million Dollar · Associate ·”.
Lot specifications (Antiquorum)
Model: made for “IOS” (the Million Dollar Associate, U.S.A.; 1955-1973); Reference: 3565 / 1; Movement No.: 1 129 321; Case No.: 2 674 397; Material: 18K yellow gold; Bracelet: brown leather strap; Buckle: gilded metal buckle; Caliber: 27-460 M, adjusted to heat, cold, isochronism and 5 positions, “Poinçon de Genève” (Geneva Quality Hallmark or Geneva seal), 37 jewels; Diameter: 35 mm.; Signature: dial, case and movement
Inscriptions & marks
dial, case and movement
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
Automatic (self-winding) watches
Self-winding watches use the wearer's motion to wind the mainspring. Abraham-Louis Perrelet and Breguet made 'perpétuelle' pocket watches with oscillating weights in the late eighteenth century, but the principle only became practical in the wristwatch. John Harwood patented a bumper automatic in 1923; Rolex's Perpetual rotor (1931) winding in one direction, and later bidirectional rotors (Eterna, Felsa Bidynator), established the modern form. Micro-rotors (Universal Genève, Buren) and peripheral rotors made automatic watches thinner.
What to look for
- A semicircular rotor turning 360° over the movement, or a 'bumper' weight that rebounds between springs.
- 'Automatic', 'Perpetual' or 'Self-winding' on the dial.
- A sealed screw-back case, since automatic watches are wound less often by the crown.
Dating clues
- Bumper automatics: 1923–c. 1955.
- Full rotors: from 1931 (Rolex); widespread after c. 1950.
- Micro-rotors: from 1954–1958.
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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