3. Breguet Grande Complication Marie-Antoinette – $30 Million
The magnificent pocket watch, encased in gold and exposing the intricate mechanics inside, was reputedly commissioned by an ex-lover of Marie Antoinette, the French monarch.
The watch was first created in 1782 and took over 40 years to complete.
It was finished in 1827 and was a true work of art in terms of design and technology, with every function accessible at the time.
