Tour d’Ile from Vacheron Constantin for $1.5 million

Vacheron Constantin is the world’s most complicated double-face watch, produced in a limited edition of 7. Tour de l’Ile is the most complicated watch ever made, with a totally original combination of horological complications and astronomical indications composing a list of sixteen different points including a minute repeater, sunset time, perpetual calendar, second-time zone, a tourbillon device, the equation of time and the representation of the night sky… This exceptional caliber composed of 834 parts called for over 10,000 hours of research and development lavished on it by the designers, engineers, and watchmakers of Vacheron Constantin.

Its name refers to one of the historical sites of the venerable company, located next to the current Maison Vacheron Constantin on the Quai de l’Ile. The most complicated watch, the Tour d’Ille has won the L’Aiguille d’Or, the top prize in the 2005 Grand Prix d’Horlogerie de Geneve, a prestigious event that honors the accomplishments of Swiss watchmakers. The timepiece was sold for record-setting $1.5 million in the auction in April 2005- the most ever for a wristwatch. The prize is decided by votes cast online by the public and by a jury of industry officials.

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