Haute Horlogerie and equestrian emblems meet and mingle in this grand complication Arceau watch from Hermes : a unique composition featuring a triple-axis tourbillon and a minute repeater.

The understated yet distinctive 43 mm polished titanium case of the Arceau Duc Attelé highlights the alliance between Hermès style and expertise. The central triple-axis tourbillon and the ‘tuning-fork’ minute repeater are in harmony with the Hermès world of Haute Horlogerie and equestrian aesthetics.

The association of these two major complications with a high-frequency movement – a first – is revealed at the heart of the watch, where every technical and stylistic detail reveals its share of unexpected elements and meticulous care. On the dial side, a sapphire dome tops the triple-axis tourbillon and its triple mirror-polished titanium carriage shaped with interlacing double “Hs”, symbolising the union of Émile Hermès and Julie Hollande in 1900.

Embodying a feat of mechanical miniaturisation, this tourbillon featuring three separate axes and rotation speeds (completing one full turn in 300, 60 and 25 seconds), operates within a curved, eccentric hour-circle. The hours-minutes display is punctuated by Arabic numerals inclined like a galloping horse. To enhance the visibility of this horological achievement, claw-shaped hands appear around the rim of the chapter ring. Their blue hue complements the 48-hour power-reserve indicator appearing at the base of the dial.

Evoking sound-wave propagation, the dynamic striped guilloché decoration of the titanium model echoes the minute repeater hammers sculpted in the shape of a horse. Chiming the hours, quarters and minutes via a dedicated slide on the side of the case, these hammers strike the elongated U-shaped branches of the long hardened-steel gong visible around the edge of the dial and whose tones are reminiscent of cathedral chimes. This ‘tuning fork’ structure ensures optimal resonance, amplified by the material used for the case that is both lightweight and endowed with excellent acoustic properties.

Hand-wound via the 3 o’clock crown, the Arceau Duc Attelé watch beats to a precise rhythm thanks to its Manufacture H1926 movement equipped with a high-frequency balance (5 Hz).

All this can be admired through a sapphire case-back inviting observers to contemplate a singular décor. The remarkable gears feature a cut-out design inspired by the wheels of the Duc attelé: a canopy-top four-wheeled carriage drawn by two horses.

The mainplate and bridges of Calibre H1926 feature an anthracite PVD treatment accentuating the light colour of the chiming mechanism, its horse head-and-mane rack and its toothed wheels picked up from the Hermès carriage emblem. The openworked sapphire-crystal strikework bridge further enhances the sound of the minute repeater while revealing the movement’s hand-finishing, its gold chatons, generous jewels and mirror-polished screws.

This Arceau Duc Attelé is a numbered 24-piece limited edition.