Perpetual Moon Obsidian

Reference: 1GLAR.Z01A.C154A

Thanks for contacting us. We'll get back to you as soon as possible.


Limited Edition: 28 pieces
Case: 18-karat rose gold
Size: 42mm
Movement: hand-wound manufacture caliber A&S1512
Function: moon phase
Power Reserve: approximately 90 hours
Water Resistance: 30m
Dial: golden obsidian
Caseback: sapphire crystal
Strap/Bracelet: hand-stitched alligator leather
Factory Warranty: two years


With its XXL moon, the Arnold & Son Perpetual Moon is ruled by Selene, the goddess of this celestial body. Arnold & Son presents a limited edition of 28 pieces featuring this distinctive complication, adorned with an extraordinary material rarely seen in watchmaking. With a dial made from Mexican obsidian, this timepiece appears to be bathed in bronze moonlight. The stone is reflected in the large rhodium-plated moon and the perfectly polished hour-markers. The result is an interplay of reflections, vibrations, and warmth that echoes the light of Earth’s satellite.

Showcasing one of the largest moons to be found in the watchmaking sphere, the Arnold & Son Perpetual Moon Obsidian stands out for the size of its complication and the aesthetic approach employed by the resolutely British Swiss brand. Housed in a 42mm rose gold case, beneath a rarely seen golden obsidian dial, is its hand-wound caliber A&S1512, offering a precision double moon phase display.