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Patek Philippe Ref. 3420 Gent's Gold Wristwatch, c. 1950 — view 1 of 2
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Wristwatches · Wristwatch

Patek Philippe Ref. 3420 Gent's Gold Wristwatch, c. 1950

DocumentedDocumented from an auction catalogue; attribution as stated by the auction house.
Maker / attribution
Patek Philippe (maker)
Date
c. 1950
Country of origin
Switzerland
Object type
Wristwatch
Materials / technique
gold
Lot
Item 41935149
Credit line
Auction lot record: lot 56242, October 29 Watches & Fine Timepieces - #5242, Heritage Auctions (2015), via LiveAuctioneers
Catalogue title (original)
Patek Philippe Ref. 3420 Gent's Gold Wristwatch, (English)

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Record summary

Catalogued by LiveAuctioneers auction archive (lot Item 41935149), this is a wristwatch by Patek Philippe, made in Switzerland, dated c. 1950. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Materials and techniques recorded by the source: gold. 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

Lot description — Heritage Auctions

Patek Philippe Ref. 3420 Gent's Gold Wristwatch, circa 1950's Case: 18k yellow gold, No. 431935, three body, 34 mm, curved lugs Dial: silver, applied gold baton indexes, subsidiary seconds, yellow gold baton hands Movement: No. 733454, caliber 27-AM 400, straight line lever escapement, Gyromax balance, Geneva quality hallmark, 18 jewels, adjusted to heat, cold, isochronism and five positions Signed: triple signed Patek Philippe Geneve

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.

Read next:Identification Centre

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