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Gruen Curvex Precision Cal. 440, 10K Gold Filled, Wadsworth Case, circa 1945-46 — view 1 of 4
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Wristwatches · Wristwatch

Gruen Curvex Precision Cal. 440, 10K Gold Filled, Wadsworth Case, circa 1945-46

DocumentedDocumented from an auction catalogue; attribution as stated by the auction house.
Maker / attribution
Gruen (maker)
Date
c. 1945
Country of origin
Unrecorded in source
Object type
Wristwatch
Lot
Item 236688827
Credit line
Auction lot record: lot 342, Vintage Omega,Rolex,LeCoultre Luxury Watches, Sphere Auctions LLC (2026), via LiveAuctioneers
Catalogue title (original)
Gruen Curvex Precision Cal. 440, 10K Gold Filled, Wadsworth Case, Circa 1945-46 (English)

View the source record (auction lot) ↗ (opens another website in a new tab)Suggest a correction

Record summary

Catalogued by LiveAuctioneers auction archive (lot Item 236688827), this is a wristwatch by Gruen, dated c. 1945. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. The record is illustrated with 4 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 — Sphere Auctions LLC

Gruen "Curvex Precision," rectangular Art Deco case with stepped bezel and fancy hinged lugs, 10K gold filled. Silvered dial with applied gold-tone Arabic 12/3/9, black minute track, gold-tone leaf hands, subsidiary seconds register at 6 signed "PRECISION."Case back engraved "CASED & TIMED IN U.S.A. BY GRUEN WATCH CO., Wadsworth, 10K GOLD FILLED, G710524, 440 544." Case width measures 23.81mm via caliper.Movement, visible on the watchmaker's side, is signed "GRUEN WATCH CO.," "SEVENTEEN JEWELS 17 PRECISION," "UNADJUSTED," "SWITZERLAND," caliber "440" — the Curvex Precision's 17-jewel manual-wind movement, produced circa the mid-1940s.Fitted to a Speidel gold-filled expansion bracelet, marked "Speidel, Pat. Pend., Made in U.S.A."Runs well.Disclaimer: Not professionally serviced or pressure-tested; sold based on description and photos provided. Buyers should have any pre-owned timepiece inspected by a qualified watchmaker prior to regular wear.

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.

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