The Arceau L'heure de la lune by Hermès offers an original perspective of the Earth's satellite, enabling the moon phases to be displayed simultaneously in the northern (bottom of the dial) and southern (top) hemispheres. On a dial available in Lunar, Martian or Black Sahara meteorite, two mobile counters orbit, revealing the moons in mother-of-pearl thanks to an exclusive module associated with an Hermès-manufactured movement. The 43 mm white gold case (in platinum for the model with a Martian meteorite dial) houses the aforementioned IWC-manufactured H1837 calibre (26 mm in diameter, 3.7 mm thick, 193 components, 28 jewels, 28,800 vibrations per hour), a self-winding mechanical movement with a circular-grained plate and satin-finished bridges and oscillating weight decorated with an "H" motif. The additional 'L'heure de la lune' module, on the other hand, has a diameter of 38 mm by 4.2 mm and is composed of 117 elements, 14 of which are rubies. The three watches are being produced in a strictly limited series of 30 pieces for the model with a Black Sahara meteorite dial, 36 for the one with a lunar meteorite dial and, finally, only 2 pieces for the one with a Martian meteorite dial. The black alligator strap is combined with a white gold folding clasp.
