{"product_id":"arnold-son-astronomy-perpetual-moon-41-5-steel-colors-of-the-moon-blue-1glbs-m03a-c263s","title":"Arnold \u0026 Son Astronomy Perpetual Moon 41.5 Steel \"Colors of the Moon\" Blue - 1GLBS.M03A.C263S","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eWith its “Colours of the Moon” series, Arnold \u0026amp; Son showcases astronomy. Presented in limited editions of 18 pieces each, these three steel versions introduce a world first in watchmaking: the use of mother-of-pearl coloured using a PVD process for both the dial and the moon phase sky. Dedicated to our natural satellite, they feature a mother-of-pearl moon-phase disc with remarkable astronomical precision. It is luminescent and crafted in three shades inspired by the changing hues of the Moon in certain seasons or under exceptional conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"UTF-8\"\u003eAnother distinguishing feature of these new “Colours of the Moon” models, which reinterpret the Perpetual Moon collection, is their stainless-steel case measuring 41.5 mm in diameter and 11.67 mm thick, giving this highly exclusive series, limited to just 18 pieces per version, a unique identity. The steel highlights the richness of the dial and the play of light across the moon phase while lending the watch greater versatility for everyday wear without diminishing its horological exclusivity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"UTF-8\"\u003eVisible through the sapphire crystal case back, the calibre demonstrates meticulous attention to detail in its finishing, from the 3 Hz regulating organ to the bridges adorned with radiating Côtes de Genève and hand-bevelled edges, as well as the perlage of the main plate and the snailing of the wheels. This opening also reveals blued screws with polished, chamfered heads and a secondary moon-phase display with graduated markings, allowing precise adjustment of the astronomical display visible on the dial side.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo bring this celestial mechanism to life while ensuring everyday timekeeping, Arnold \u0026amp; Son has equipped the three Perpetual Moon “Colours of the Moon” limited editions with its in-house A\u0026amp;S1512 manual-winding calibre. With a diameter of 34 mm and a thickness of 5.35 mm, this movement offers a generous 90-hour power reserve when fully wound.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003eIn keeping with their striking aesthetic character, the \u003c\/span\u003e\u003cem\u003ePerpetual Moon “Colours of the Moon”\u003c\/em\u003e\u003cspan\u003e timepieces are paired with hand-stitched alligator leather straps in matching tones. 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