In an era of mass-produced gadgets, there is a certain pride in knowing that a single Swiss artisan produced your watch by hand. Case in point: the 18-karat white-gold and alligator Cartier Calibre Multiple Time Zone. With the ability to track the time in 24 cities and a face that displays the hour in two places at once, this is the ultimate accessory for jet-setters. Price upon request.
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