Breguet Grande Complication Antique Number 4111

Breguet Grande Complication Antique Number 4111, is a chronometer-based thin flat equation-of-time and repeater watch. Hours, half-hours, quarter-hours, and half-quarters are all repeated on the Breguet watch. This "Grande Complication" watch was bought for more than 2.5 million Swiss francs in 1827. It includes a yearly calendar and a manual perpetual calendar, as well as mean and apparent solar time. A unique technological feat in a "Grande Complication" watch, this antique Breguet watch was constructed incredibly thin. The balance wheel on the Grande Complication Watch has been modified so that it will work as intended, repeating hours, half-hours, quarter-hours, and half-quarters.

In 2012, Breguet president Mark A. Hayek purchased this antique Grande Complication Antique No. 4111 at Christie's auction in Geneva, Switzerland. It is one of the most expensive Breguet antique watches ever sold at auction. This exceedingly rare and thin Breguet design, which dates from 1827 and is based on the chronometer concept, includes an annual calendar, a manual perpetual calendar, and mean and apparent solar time.

Price: $2.56 million