iW Magazine
SIHH 2019

SIHH 2019: Hermès Moon Eclipses the Ordinary

Available with two stunning dial options, the Hermès Arceau L’heure de la Lune is a particularly bold moonphase watch. This SIHH 2019 debut offers simultaneous display of moon phases in the northern and southern hemispheres while also showing the time and date.

Both displays rotate, retaining their orientation, around either a meteorite or aventurine dial, revealing mother-of-pearl moons that are coupled with the Manufacture Hermès H1837 movement, assisted by a moonphase module made for Hermès.

Only one of the moons here is a realistic depiction of our satellite’s true surface. At the top of the dial, the other moon is adorned by a Pegasus designed by Dimitri Rybaltchenko. Entitled Pleine Lune (Full Moon), this portrayal of the winged horse is said to “hint at a passage between two worlds, where magic and reality merge.”

The 43mm white gold Hermès Arceau case with its asymmetrical lugs frames the meteorite stone or aventurine dial. The watches are to be issued in two 100-piece limited editions, and fitted with a matte alligator strap in graphite grey or abyss blue.

The two limited edition dial options are:

Aventurine dial:
White-lacquered mobile counters, black transfers, 100-piece limited and numbered edition

Meteorite dial:
Gradated grey-lacquered mobile counters, white transfers, 100-piece limited and numbered edition

Specifications: Hermès Arceau L’heure de la Lune

Moons in white natural mother-of-pearl

Southern moon: Pegasus transfer inspired by the Pleine Lune motif designed by Dimitri Rybaltchenko

Northern moon: lunar surface transfer

Blued hands


43mm white gold case, sapphire crystal and case-back with anti-glare treatment, water-resistant to 30 meters

Movement: Hermès Manufacture H1837 movement

Mechanical self-winding, Swiss made

Diameter: 26 mm (11½'''), thickness: 3.7 mm

193 components, 28 jewels

Frequency: 28,800 vph (4Hz)

Circular-grained and snailed baseplate, satin-brushed bridges and oscillating weight, signature “H” pattern

Module: Exclusive “L’heure de la lune” module

Diameter: 38 mm (16¾'''), thickness: 4.2 mm

117 components, 14 jewels

Polished and bead-blasted bridges


Hours, minutes, date, double moon phase (display of moon phases seen from the northern and southern hemispheres)


Aventurine dial: matt abyss blue alligator

Meteorite dial: matt graphite alligator

17 mm white gold folding clasp (26.39 g)

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