The Largest 3D Moonphase on A Wristwatch

Why It Matters

By marrying rare materials with unprecedented moonphase accuracy, the Luna Magna redefines luxury watchmaking standards and attracts high‑net‑worth collectors seeking both technical mastery and unique provenance.

Key Takeaways

• 12 mm spherical moonphase is largest ever in wristwatch
• Half moonphase crafted from meteorite, other half milky white opal
• Dial and moonphase treated with Super-Luminova for enhanced glow
• ANS1021 hand‑wound movement offers 90‑hour reserve, 3 Hz frequency
• Moonphase error correctable only once every 122 years

Summary

The Arnold & Sun Luna Magna Meteorite watch introduces the industry’s largest three‑dimensional moonphase, a 12 mm spherical display that dominates the dial. Housed in a 44 mm case only 15.9 mm tall, the timepiece blends avant‑garde materials with traditional watchmaking.

The moonphase is split between a half‑meteorite segment and a milky white opal counterpart, while the surrounding dial and the moon’s surface are treated with Super‑Luminova, ensuring visibility in low light. A white‑opaled 12‑hour sub‑dial, accented by a heat‑blued handset, adds further visual contrast.

Powered by the ANS1021 hand‑wound calibre, the watch runs at 3 Hz and offers a substantial 90‑hour power reserve. Its moonphase mechanism is calibrated to require correction only once every 122 years, and an exhibition case back reveals the moonface structure for precise setting via the crown.

For haute‑horology enthusiasts, the Luna Magna sets a new benchmark in mechanical complexity, material innovation, and collectible appeal, reinforcing the market’s appetite for ultra‑exclusive, technically superior pieces.

Original Description

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