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Vintage Vacheron Constantin 2020 Tonneau from the 1950s on a wrist. 32mm with 18k Yellow Gold Case, Automatic Cal. K1121, Original matte black dial and black Leather strap.
Vintage Vacheron Constantin 2020 Tonneau from the 1950s on a wrist. 18k Yellow Gold Case, Original matte black dial and black Leather strap.

Vacheron Constantin 2020 Tonneau 1950s

€6.500
Only 1 available

Free insured worldwide express delivery

Trusted by over 2,000 collectors worldwide

GOLDAMMER authenticity guarantee

1-year mechanical warranty

14-day free & easy returns

Curved Elegance — A 1950s Vacheron with Black Tie Presence

This Vacheron Constantin Ref. 2020 from the 1950s captures the charm of mid-century design with a bold twist: an elegant tonneau-shaped case in solid 18k yellow gold paired with a deep matte black dial — a combination rarely seen and effortlessly striking.

The dial remains untouched and flawlessly preserved, with slender golden stick hands and markers that stand out in refined contrast. Its sculpted tonneau case, crafted by Ed. & Ch. Nardin, hugs the wrist with sophistication and timeless flair.

Inside, the revered Caliber K1121 — with its 21k gold rotor and Geneva Seal pedigree — ensures this beauty performs as brilliantly as it looks. Elegant, rare, and mechanically impressive, this is a vintage dress watch that carries true collector weight.

- wrist size in our picture is 18 cm circumference -

DIAL:

  • original never touched matt black dial in flawless condition
  • original hands and crown

STRAP & BUCKLE:

CASE:

  • excellent overall condition, showing almost no traces of use
  • 3- body 18k yellow gold case with snap-on case back from casemaker Ed. & Ch. Nardin
  • 32 mm (without crown) / 37.5 mm (lug-to-lug) / 18 mm (between lugs) / 6.7 mm thick
  • year: 1950s
  • reference: 2020
  • total weight: 38 g

MOVEMENT:

  • Vacheron Constantin Cal. K1121  - automatic
  • 36 jewels, 19800 A/h, 50 hours power reserve
  • professionally serviced 05/2025
  • +19 sec/d / 240°

BOX & PAPERS:

  • GOLDAMMER certificate of authenticity & service documentation card
  • GOLDAMMER box

GOLDAMMER REFERENCE: #996

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