Hands On: Roger Dubuis Excalibur Biretrograde Perpetual Calendar

The Roger Dubuis (RD) Excalibur Biretrograde Perpetual Calendar is something of a bridge across eras for RD, combining the brand's seminal biretrograde calendar format with the 2000s-era Excalibur case, executed in RD's current lavishly layered house style. The revised perpetual calendar module brings plenty of haute horlogerie finishing to the dial side, and should prove more reliable than past iterations as well. Initial thoughts The Excalibur Biretrograde Perpetual is a new model, but it feels like a watch that has always been around, combining several familiar Roger Dubuis elements. Chief among them is the biretrograde format, which has been a staple of the brand since its founding era. When the Excalibur Biretrograde Calendar debuted last year, we speculated that a perpetual version was likely in the pipeline, and we didn't have to wait long to find out. In terms of design, it's pure RD through and through.