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Vintage Audemars Piguet Watch 18k Automatic Black Diamond from the 1970s on a wrist. 31.5mm in 18k White Gold with Automatic movement, Black dial with diamond hour markers and Integrated bracelet.
Vintage Audemars Piguet Watch 18k Automatic Black Diamond from the 1970s on a wrist.
Audemars Piguet Watch 18k Automatic Black Diamond. 31.5mm in 18k White Gold with Automatic movement, Black dial with diamond hour markers and Integrated bracelet.

Audemars Piguet 18k Automatic Black Diamond 1970s

€12.900

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Black Diamond Elegance — Audemars Piguet in 18k White Gold

This rare Audemars Piguet from the late 1970s is an exercise in quiet opulence. Crafted entirely in 18k white gold, its unique octagonal-elliptical case houses a flawless black dial punctuated by twelve factory-set diamond hour markers — understated luxury at its finest.

The ultra-thin Calibre 2121/1, one of Swiss watchmaking’s most revered automatic movements, lies within a case just 6 mm thick. The integrated white gold bracelet flows effortlessly around the wrist, offering comfort that matches its architectural refinement.

Extremely rare in this configuration — and preserved in outstanding condition — this Audemars Piguet is more than a timepiece: it’s a wearable sculpture of modernist craftsmanship and enduring elegance.

- wrist size in our picture is 18cm circumference -

DIAL:

  • original never touched black dial in flawless condition
  • 12 factory diamonds as hour markers
  • original hands & crown
  • tiny scratch on crystal next to the center

BRACELET & CLASP:

  • 18k white gold AP bracelet is fitting up to a 19.5 cm and is slightly adjustable at the clasp (around 0.5 cm) / 2 mm thick
  • 18k white gold AP clasp 

CASE:

  • excellent overall condition, showing almost no traces of use
  • 3- body 18k white gold case with snap-on case back from casemaker Adea Fontan Sàrl
  • 31.5 mm (without crown) / 31.5 mm (lug-to-lug) / 20 mm (between lugs) / 6 mm thick
  • year: 1977-1979
  • total weight: 95 g

MOVEMENT:

  • Audemars Piguet Cal. K 2121/1 - automatic
  • 36 jewels, 21600 A/h, 40 hours power reserve
  • professionally serviced 08/2025
  • +11 sec/d / 310°

BOX & PAPERS:

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

GOLDAMMER REFERENCE: #1065

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Audemars Piguet 18k Automatic Black Diamond 1970s

€12.900

Classic vintage watch worn on a wrist above vintage watches and luxury watches on a desk.

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All GOLDAMMER watches are guaranteed authentic by our trusted watchmakers and ourselves. Certificate included!

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All watches at GOLDAMMER are professionally serviced by our trusted watchmakers and are guaranteed to be in perfect condition.

Comprehensive Warranty

Our watches are covered by a one-year mechanical warranty. If anything goes wrong, please let us know immediately.

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We know you'll love your watch. If you don't, you can return it to GOLDAMMER within 14 days, no questions asked.

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Preserving Excellence

As most of our watches are around half a century old, they need to be treated with extra love and care and serviced every 4-5 years.


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