18-carat red gold case
hours, minutes, big perpetual moon
Diameter disc: 29 mm, diameter moon: 11.2 mm, second moonphase indication on the back for setting purposes
Exclusive Arnold & Son mechanical movement, hand-wound, big perpetual moon, 27 jewels, diameter 34 mm, thickness 5.35 mm, power reserve 90 h, two barrels, 21’600 vibrations/h. Movement decoration: nickel-silver movement, rhodium treated with Haute Horlogerie finishing: manually chamfered bridges with polished edges, fine circular graining and Côtes de Genève rayonnantes, blued screws with bevelled and mirror-polished heads.
18-carat red gold, diameter 42 mm, cambered sapphire with anti-reflective coating on both sides, case back see-through sapphire
cream, translucent blue lacquered guilloché moon disc with golden moon and stars; back dial: fine circular graining, rhodium treated, rendition of the 8 phases of the moon
hand-stitched black or brown alligator leather