Here we have one of the rarest (maybe 1/1) and the most interesting piece from Vacheron Constantin we have ever seen. 

The 18k white gold case measuring 22.6 mm in diameter is in sharp condition and refined with a basket-weave finished 18k white gold bracelet. The icing on the cake is the rare deep black Onyx dial which we have never seen before in this reference.

CASE:

• excellent overall condition, showing no traces of use (near NOS)
• 3- body 18k white gold case with screw-down case back
• 22.6 mm (without crown) / 30 mm (lug-to-lug) / 21.5 mm (between lugs) / 4.7 mm thick
  
• year: 1970s
  
• reference: 7186
• total weight: 73 g

MOVEMENT:

• Vacheron Constantin Cal. 1003 - manual wound
• 20 jewels, 18000 A/h, 46 hours power reserve
• professionally serviced 06/2024
• +2sec/d / 300°

DIAL:

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

BRACELET & CLASP:

• original Vacheron Constantin integrated 18k white gold bracelet fitting up to 19 cm wrist size (slightly adjustable around 1 cm at the clasp) / 2.4 mm thick
• original Vacheron Constantin 18k white gold clasp

GOLDAMMER REFERENCE: #571