Video. Excalibur Quatuor In the news Watch Knowledge Roger Dubuis By Editorial team In Watch Knowledge on June 10, 2013 1 minute read Discover Roger Dubuis Favorite The Excalibur Quatuor is the world’s first silicon watch incorporating four sprung balances. Copied to clipboard Share this post Featured brand Roger DubuisDiscover Roger Dubuis Nextread scroll to load next article Omega Speedmaster: Far More Than the Moonwatch By Simon de Burton Omega Fresh From Farm To Wrist By Anders Modig Davin Cvstos Fresh 25th Anniversary of WorldTempus: 25 Questions & 25 Prizes By WorldTempus Events Fresh Loading next post