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Face up photo of Luna Magna White Gold "Ultimate II"

Luna Magna White Gold “Ultimate II”

The blue-green glow of the Paraíba tourmaline is the cornerstone of an exceptional creation by Arnold & Son. Luna Magna Ultimate II is adorned with PVD-treated ruthenium crystals.

Limited to 8 pieces.

A lagoon-blue moon

Encircled by baguette-cut diamonds, the dial adopts the same shade as the Paraíba, which is one of the rarest and most precious gemstones and is pavé-set on the three-dimensional astronomical moon. Luna Magna Ultimate II, a limited edition of eight pieces, takes Arnold & Son’s manufacture creations to exclusive new heights.

Above and beyond the technical prowess of inserting a 12 mm lunar sphere into a watch, the piece features superlative gem-setting, both in terms of the stones chosen and the techniques used. From pavé to invisible and channel setting, Arnold & Son is drawing on know-how of the highest level to produce eight Luna Magna Ultimate II timepieces.

Technical Specifications

Reference: 1LMMW.Z04A.C213A
hours, minutes, astronomical moon-phase, moon-phase indicator on the back
37.60 mm
12.00 mm with three-dimensional moon (4.75 mm without moon)
Power reserve:
90 hours
3 Hz / 21,600 vph
lagoon-blue PVD-treated ruthenium crystals
white opal
Moon phases
12.00 mm diameter, 18K white gold, set with 161 diamonds and 161 Paraíba tourmalines
18K white gold, bezel invisible set in two rows and set lugs for a total of 112 baguette-cut diamonds (~5.90 ct)
44 mm
15.90 mm
domed sapphire, with an anti-reflective coating on both sides
sapphire crystal, with an anti-reflecting coating
Water resistance:
3 bar (30 metres/100 feet)
lagoon-blue alligator leather, raspberry-pink alligator leather lining, hand-stitched
pin buckle, 18K white gold, set with 26 baguette-cut diamonds (~0.97 ct)

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Photo of Luna Magna White Gold "Ultimate II"

A precious lagoon

A fine, atoll-like ring surrounds Luna Magna Ultimate II. It is formed of 112 baguette-cut diamonds totalling 5.90 ct. They overhang the flat surface of the bezel, appearing as if simply placed upon it, floating over its edge, allowing the pass through them like an open prism. This is known as an “invisible” setting, generating unique sparkle. The rarity of its material makes the dial just as exceptional. Its glittering appearance is due to millions of pure ruthenium crystals. This extremely hard metal is found in platinum mines, as they are found in the same ore. However, ruthenium is much rarer than platinum. For Luna Magna Ultimate II, the ruthenium was reformed into crystals and dyed using complex processes, before being deposited onto a dial plate. The result, now found regularly on Arnold & Son’s timepieces, is unique in the watchmaking world.

Photo of Luna Magna White Gold "Ultimate II"

A tourmaline night

A traditional dial is located at 12 o’clock, marked with 12 signature Arnold & Son Roman numerals. This off-centre subdial owes its pristine, slight milky white hue to opal. Its classic design harks back to the aesthetics of the famous marine chronometers made by English watchmaker John Arnold. Under the time display, Luna Magna’s three-dimensional moon takes on a new appearance. The white gold globe is entirely pavé-set. It is split into 161 brilliant-cut diamonds, representing the illuminated side of the moon, and the same number of Paraíba tourmalines for the portion in shadow.