LM-27.70.20
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LM-27.70.20

Astralis - Unique piece - Sun

Split-second clamps

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Astralis - Unique piece - Sun

Astralis Sun is a unique piece representing the Sun, the star at the centre of our Solar System, whose enormous effect on our planet has been recognised since prehistoric times.

Astralis Sun features a 24-hour planetarium housing exceptional meteorites, each one symbolising important galactic bodies: Mars, Mercury, the Moon and, of course, the Sun.

Regulated by an intricately-engineered tourbillon, Astralis Sun also features a split-second, column-wheel chronograph, its complex mechanism beguiling the viewer through the display back.

The planetarium at 6 o’clock contains four highly-polished precious meteorites – Dhofar 459, Itqiy, Sahara 99555 and Jiddat al Harasis 479 – respectively denoting the Earth’s Moon, the Sun and the planets Mercury and Mars.

These fragments of rare galactic rock are all unique, set into a scintillating aventurine disc that makes one whole revolution per day.

Across the dial, between 11 and 12 o’clock, is the 60-second tourbillon escapement mounted in a rotating cage majestically supported by a highly-polished, Y-shaped bridge.

Gilded Gouttes de Rosée hands indicate hours and minutes while the central chronograph seconds hand is complemented by a split-second chronograph hand adorned with a shooting star, the pusher for which is integrated into the crown. At 3 o’clock is a 30-minute chronograph counter.

The ensemble of indications is framed within the regal 18k white gold case.

Turning Astralis Sun over, the chronograph column wheel and split-second ‘scorpion’ clamps – providing ultra smooth functionality – can be glimpsed through the display back along with a plate engraved with planets which, together with the gold chaton and blued screws, evoke a beautiful night sky.

Astralis Sun is presented in a resin-cast planetoidal box, handcrafted by artist Jean-Yves Kervévan. The quartet of Astralis unique pieces – Mars, Mercury, Moon and Sun – is housed in a stylish, leather-bound wooden cabinet.

> More Technical specifications

Technical specifications

A unique piece, Astralis Sun is a split-second chronograph featuring a 24-hour planetarium with real meteorite fragments, each representing an important body in our solar system: Mars, Mercury, the Moon and the Sun.

  • Features and indications

    Hours, minutes and seconds 

    Split-second chronograph with seconds, split seconds and 30-minute counter 24-hour planetarium 

    Astral tourbillon

  • Dial

    Planetarium containing fragments of Dhofar 459, Itqiy, Sahara 99555 and Jiddat al Harasis 479 exclusive meteorites 

    Midnight blue Côtes du Jura dial

    Facetted applied hour-markers/hour indices

  • Hands

    Gilded Gouttes de Rosée hour and minute hands

    Gilded chronograph seconds hand

    Split-second 'shooting star' chronograph hand in heat-blued steel

  • Movement and Finishing

    Louis Moinet Calibre LM27 

    Tourbillon cage: 1 turn/minute

    Jewels: 31 

    Winding: Hand-winding 

    Oscillations: 21,600vph

    Frequency: 3 Hz 

    Lines: 14.5 

    Power reserve: 48 hours 

    Escapement: Side lever 

    Oscillator: CuBe two-arm balance wheel, moment of inertia: 10.5 mg/cm2, lever angle 52° 

    Split-second mechanism: Blued steel column-wheel with monobloc split-second ‘scorpion’ clamps 

    Hand-engraved plate 

    Polished jewel sinks 

    Grained brass 

    Blued steel screws

  • Case

    Diameter: 46.50mm 

    Height: 17.62mm 

    Louis Moinet signature case in 18k white gold

    Comprising 50 elements that are meticulously assembled 

    Facets softened by the work of the master polisher 

    Sapphire crystals with anti-reflective treatment 

    Case diameter: 46.50mm 

    Case thickness: 17.62mm 

    Water resistance: 50m 

    Caseback: Secured with 7 screws, engraved with the individual number and Louis Moinet symbols 

    Crown guard: patent pending 

    Pusher inside crown activates split-second chronograph 

    Champagne cork chronograph pushers with compass rose motif

  • Strap and buckle

    Strap: Midnight blue Louisiana alligator leather with alligator lining, hand-sewn

    Buckle: 18k gold and black titanium double folding clasp

  • Presentation box

    Presented in a resin-cast, planetoidal box handcrafted by artist Jean-Yves Kervévan. All four unique pieces – Mars, Mercury, Moon and Sun – are, in turn, presented in a leather-bound wooden cabinet.

Hand-engraved plate
The engraved planets with the gold chaton and blued screws evoke a beautiful night sky
Column wheel
Provides ultra smooth chronograph functionality
Split-second clamps
The split-second chronograph ‘scorpion’ clamps are made from a single piece of steel