Vacheron Constantin 7390 Square Black 1970s

Modernist Minimalism in White Gold — A Rare Vacheron Statement

Bold in silhouette yet understated in tone, this Vacheron Constantin Ref. 7390 from the 1970s is a study in elegant contrasts. Crafted in solid 18k white gold, its crisp square case with razor-sharp edges reflects the clean, confident geometry of the era — Swiss minimalism at its peak.

The flawless black dial is left intentionally uncluttered: slender baton hour markers, a clean stick handset, and no distractions. Inside, the refined Caliber K1121 — based on the legendary JLC 920 — delivers smooth automatic performance, enhanced by a 21k gold rotor. This movement was only used by the most prestigious maisons: Vacheron, AP, and Patek.

Seldom seen in black, and even rarer in this preserved condition, this piece is a quiet yet powerful expression of 1970s design sophistication and mechanical pedigree.

- wrist size in our picture is 18cm circumference -

DIAL:

• original never touched black dial in flawless condition
• original hands & crown
  

STRAP & BUCKLE:

• matte black GOLDAMMER Kardinal leather strap fitting up to 20 cm wrist size / 2 mm thick
• gold plated GOLDAMMER buckle

CASE:

• great overall condition, showing very minor traces of use
• 3- body 18k white gold case with snap-on case back from casemaker Eggly & Cie
• 32 mm (without crown) / 38 mm (lug-to-lug) / 18 mm (between lugs) / 6.2 mm thick
  
• year: 1970s
  
• reference: 7390
• total weight: 39 g

MOVEMENT:

• Vacheron Constantin Cal. K1121  - automatic
• 36 jewels, 19800 A/h, 50 hours power reserve
• professionally serviced 06/2025
• -9 sec/d / 300°

BOX & PAPERS:

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

GOLDAMMER REFERENCE: #1111