Roger Dubuis’ Excalibur Knights of the Round Table watch has been updated with a dramatic Arthurian dial scene made of Murano glass.

The latest Excalibur Knights of the Round Table watch features micro-sculpture knights surrounding an ominous crack in the ground that is glowing red hot, rather than the round table.

The effect is achieved through the use of small, hand-assembled slabs of black Murano glass made on the Venetian island of Murano, while the red magma effect is achieved through the use of red lacquer. The 12 knights, which represent hour markers and are cast in 18K rose gold, are set within a ring of blood red Murano glass, which is also set into the crown.

A deep ring of transparent sapphire crystal sits between the bezel and the 45mm 18K rose gold case to provide a different perspective on the scene.

The Excalibur Knights of the Round Table Boutique Edition, powered by the 4Hz automatic Monobalancier RD821 calibre, is limited to 28 pieces and available through Roger Dubuis boutiques for $343,000 USD.