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Face up photo of Perpetual Moon 41.5 Platinum
Astronomy

Perpetual Moon 41.5 Platinum

A white mother-of-pearl star in a midnight-blue sky. The astronomical moon phases showcase Arnold & Son’s creativity and aesthetic flair.

Limited to 28 pieces.

Celestial rays

Its dial features a unique motif, Stellar Rays, as befits this astronomical complication.

Arnold & Son explores the theme of moon phases with its constant eye for detail and decoration. Two new editions of Perpetual Moon take advantage of the watchmaker’s recent developments in the fields of cases, dials and finishes. These references further enhance the collection of giant moons by this most British of Swiss brands.

Technical Specifications

Reference: 1GLBX.P01A.C200W
Functions
hours, minutes, astronomical moon phases, second moon-phase indicator on the back
Movement
Jewels:
27
Diameter:
34.00 mm
Thickness:
5.35 mm
Power reserve:
90 hours
Frequency:
3 Hz / 21,600 vph
Dial
‘Stellar Rays’ decor, with salmon-pink PVD treatment
Moon phases
sky:
grained, with blue PVD treatment
constellations:
hand-painted, with added Super-LumiNova
moon:
mother-of-pearl disc coated with Super-LumiNova, hand-painted details
Case
Material:
platinum (Pt950)
Diameter:
41.5 mm
Thickness:
11.30 mm
Crystal:
domed sapphire, with an anti-reflective coating on both sides
Back:
sapphire crystal, with an anti-reflecting coating
Water resistance:
3 bar (30 metres/100 feet)
Strap
Material:
blue alligator leather, hand-stitched
Buckle:
pin buckle, platinum (Pt 950)

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Photo of Perpetual Moon 41.5 Platinum

Frame of light

The Perpetual Moon 41.5’s cases in 950 platinum have been redesigned. The lugs have been simplified so that instead of their original cross shape, they now present a tauter form of plunging bars with bevelled ends. The case, previously measuring 42 mm, is reduced to 41.5 mm without affecting the size of the dial. This has reduced the width of the bezel, drawing attention to the dial, its finishes, and its vast moon.

Photo of Perpetual Moon 41.5 Platinum

Furrows of light

The dials on these new creations present a unique finish known as Stellar Rays, its aesthetic obtained through skilfully irregular engraving. Several depths and widths of rays coexist and follow on from one another, creating their own rhythm, each generating a fluctuating interplay of light and a depth obtained by applying several layers of transparent lacquer.

Perpetual Moon 41.5 Platinum is coupled with a salmon pink whose soft metallic radiance complements the rhodium-plated details on the dial.

View Variations