Cart 0

Your order qualifies for free insured express delivery. You are €250 away from free insured express shipping.
Sorry, looks like we don't have enough of this product.

Products
Subtotal Free
Shipping, taxes, and discount codes are calculated at checkout
  • American Express
  • Apple Pay
  • Google Pay
  • Klarna
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your Cart is Empty

Audemars Piguet 18k Automatic Black Diamond 1970s

€12.900
Only 1 available

Free insured express delivery worldwide

Trusted by 2,000+ collectors worldwide

GOLDAMMER authenticity guarantee

1-year mechanical warranty

14-day free & easy returns

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

Inquiries & Bank Wire

Do you have any questions or want to pay by bank transfer? Email us. Our Head of Sales [email protected] is here to assist you.

[{"variant_id":"54424654315788" , "metafield_value":""}]

Trusted by over 2,000 collectors in 40+ countries


Do you require further assistance?

Explore our FAQ page for thoughtfully curated answers to guide your experience.


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

Be the first to access our weekly releases

When you sign up, you'll get:

Early access to new watches
Vintage-Watch-Buying Guide
Look behind the scenes