Crafted from a white gold 750/1000 case with an open case back, the Roger Dubuis Excalibur Diabolus in Machina RMT features a sapphire crystal bezel set with baguette-cut rainbow sapphires and has a thickness of 16.87 millimeters. The 45mm size is water-resistant up to 5 bar (50m). The dial is adorned with a rhodium-plated double surface flange, engraved minute track, and transferred texts, as well as polished, gold-plated hour markers set with baguette-cut rainbow sapphires totaling 0.264 carats. The center also features white SLN, while the gold-plated Roman numerals have a black varnished center. The satin-brushed beams are trued-up with polished chamfers. The main material used is 18K white gold 150. According to the non-exotic policy of the Excalibur collection, a premium calf