At this year's Watches & Wonders 2020, Swiss watchmaker Roger Dubuis introduces a brand new Excalibur watch – the Excalibur Diabolus in Machina. Unusually, the 45 mm watch's case and caseback are made with the alloy CarTech Micro-Melt BioDur CCMTM. Meanwhile, the skeletonised timepiece's functions include a minute repeater and a single flying tourbillon. The…
