Cartier Tank Must de 'Onyx' 'Black "Spider" Dial Vermeil Ref. 3 66001 from 1980s

Cartier Must de Tank Vermeil “Black Onyx Spider Dial” – Ref. 3 66001

A Rare and Mesmerizing Vintage Tank

This Cartier Must de Tank Vermeil stands out with its deep black “spider” dial — a stunning natural patina formed through the fine cracking of the original lacquer over time. Each line of the spiderweb pattern is unique, turning this elegant Cartier classic into a true collector’s piece.

Case & Movement

• Reference: 3 66001

• Movement: Cartier Caliber 66 Quartz — precise, dependable, and easy to maintain

• Case: Vermeil (sterling silver with gold plating)

• Dimensions: 20 × 28 mm

• Condition: Excellent, with crisp edges and minimal signs of wear

Dial & Hands

• Dial: Deep black lacquer with fine “spiderweb” cracking — a naturally aged and highly sought-after finish

• Hands: Gold-toned dauphine hands, beautifully contrasting the dial

Strap & Buckle

• Strap: Glossy black lizard leather, handmade in Belgium

• Buckle: Standard gold-plated pin buckle

Collector’s Notes

This piece exemplifies Cartier’s timeless design with a dash of vintage intrigue. The spider effect adds warmth and individuality — a testament to the organic beauty of age. Recently serviced, it runs flawlessly and is offered in superb collector’s condition with a 12-month guarantee.