Roger Dubuis sets a Lady of the Lake dial in 147 diamonds and sculpted hawthorn

Roger Dubuis has added a Hawthorn edition to its Excalibur Lady of the Lake line as the autumn follow-up to the two high-end mechanical watches the maison introduced at Watches & Wonders 2026. The new piece dresses a 36mm rose gold case in diamonds and a dial of sculpted mother-of-pearl flowers.

The inspiration is Viviane, the water fairy who hands King Arthur his sword Excalibur and who later gives Lancelot a magic ring. Roger Dubuis has built the feminine side of the Excalibur around her, as the guiding spirit of the Lady of the Lake sub-collection.

In profile, the crown echoes that story literally: it is ring-shaped, referencing the ring Viviane gives Lancelot. The case keeps the fluted bezel of the men's Excalibur, but the bezel segments are set with diamonds, as are the two central bar-shaped lugs.

At 9.85mm thick, the case is far more compact than the full-size Knights of the Round Table pieces. The finish is polished and satin-brushed, with an overhanging bezel and sweeping, diamond-set flanks that hug the crown, so gemstones wrap the whole profile.

The dial is built in three layers. The raised, snailed flange carries applied galvanised rose gold indices filled with luminescent material, which keeps the hour markers legible in the dark.

Slightly lower, the next level is a smooth white mother-of-pearl track. Across it run three-dimensional white hawthorn flowers sculpted from mother-of-pearl, each with a diamond-set center and surrounded by red sapphires that represent the shrub's berries.

The small seconds at 6 o'clock are marked by a white mother-of-pearl hawthorn flower. The faceted rose gold hour and minute hands glide above this scene, and the central part of the dial gleams with 147 diamonds.

The caseback has a sapphire crystal that shows the RD830 automatic movement and its openworked 22k rose gold rotor. The caliber beats at a frequency of 4Hz and delivers a power reserve of 48 hours.

The movement is decorated with Côtes de Genève and snailing. The watch is paired with a red pearlescent alligator strap and a rose gold pin buckle, which picks up the red of the sapphire berries.

Roger Dubuis lists the price as available upon request. It describes the Hawthorn edition as its proposal for autumn, and it has not stated a production run for the watch.

How the Excalibur became a women's watch

Roger Dubuis created a storyline for its Excalibur Knights of the Round Table watches, using detailed micro-sculptures and métiers d'art to depict scenes from Arthurian legend. Those scenes are housed in large, complex cases.

The brand launched a women's line with its Velvet collection in 2012. Excalibur later followed with a scaled-down, more feminine version of the watch in more wearable 36mm cases, the size used here.

Roger Dubuis introduced two high-end mechanical Lady of the Lake watches at Watches & Wonders 2026, bringing female characters from the legend of King Arthur into the narrative.

Our page on Roger Dubuis files the maison under its own banner of Hyper Horology, the label for its openworked, sculpted approach to watchmaking. The openworked rotor on this Hawthorn edition fits that approach.

The brand's more information page is at rogerdubuis.com, where the watch is presented. The sources give no boutique list and no delivery timing, so what reaches clients and when remains to be confirmed by the maison.