The Roger Dubuis Excalibur Quatuor watch costs $1.1 million Debuted in 2013, the Excalibur Quatuor silicon watch took 2,400 hours to build and over 7 years of research to create. Each of its balances pulse four times per second, so instead of a classic ticking watch, it sounds more like a whirring machine. Only three of these watches exist in the ...
Read More »