The hawthorn has been selected as Viviane’s symbolic flower. At the centre of the dial, a three-dimensional composition is illuminated by 147 diamonds, while flowers sculpted from white mother-of-pearl and hawthorn berries crafted from red sapphires create a rich botanical landscape.

As spring blossoms gradually transform into berries, and autumn colours them a rich scarlet red, the hawthorn becomes a symbol of transformation, mirroring the enduring power of both nature and the Lady of the Lake. The small seconds display is indicated by a mother-of-pearl flower petal mounted on a rotating disc. Its asymmetrical three-dimensional construction presents a significant technical challenge, requiring precise control of balance and inertia.

Set against this floral landscape, faceted rose-gold hour and minute hands provide clear legibility. The double-sided bezel enhances the theatrical architecture of the dial, while galvanised rose-gold appliqué indexes filled with luminescent material accentuate its depth. Completing the composition, the flange features a snail-pattern finish on its upper surface and a matt treatment along its inclined edge.

Excalibur Lady of the Lake is housed in a 36 mm rose-gold case conceived as a piece of jewellery. Its construction combines technical complexity with graceful aesthetics. A diamond-set inset ring extends from the case middle towards the crown, while polished angles contrast with satin-brushed surfaces to enhance the warm glow of the gold. The crown is adorned with the polished Roger Dubuis logo, protected beneath transparent lacquer that adds visual depth.

A defining element of the Excalibur collection, the fluted bezel is set with high-purity diamonds. The case flows seamlessly into the strap through two inclined lugs, each embellished with four diamonds. The watch is paired with a deep red alligator leather strap featuring a subtle pearlescent finish and secured by a rose-gold pin buckle.

The sapphire crystal caseback reveals the RD830 automatic mechanical calibre, composed of 183 components and decorated with traditional Haute Horlogerie finishes. Among these are Côtes de Genève on the main plate and fine snailing motifs distinguished by concentric circular patterns. Roger Dubuis has also equipped the movement with an open-worked 22-carat gold oscillating weight. The RD830 movement perfectly expresses the Maison’s vision of feminine watchmaking, where mechanical expertise meets bold creativity.

With the Excalibur Lady of the Lake collection, Roger Dubuis presents a feminine interpretation of Arthurian mythology within a jewel-like 36 mm rose-gold case. Inspired by Viviane, the three editions each reveal a different facet of her personality. Shades of grey evoke the strength, courage and independence of the knightess, while green mother-of-pearl reflects the mysteries of her magic deep within the Brocéliande Forest. In the Hawthorn edition, flowers and berries celebrate her profound connection to nature, as well as her nurturing and protective spirit.