Tourbillon Rosetta Stone

The Tourbillon Rosetta Stone dial features a hand-crafted fragment of the extremely rare Sahara 99555, an authentic meteorite that fell to Earth and which could hail from the planet Mercury.

Geological experts have used ultra-precise measurement techniques that suggest this rock is 4.6 billion years old – only a million years younger than the accepted minimum age of the Solar System and as such, the Sahara 99555 meteorite has been dubbed the ‘Rosetta Stone’ for early Solar System chronology.

Its greenish-grey colour throws into stark relief the central golden hour and minute hands as well as the main spring and tourbillon escapement that are revealed by the dazzling open-work dial architecture.

The escapement at 6 o’clock is mounted in a rotating tourbillon cage that helps to maximise timekeeping precision by averaging the effects of positional variations caused by gravity, while the state of wind revealed by the visible main spring at 12 o’clock provides an organic indication of the available power.

The exceptional case of this Meteoris Tourbillon comprises 50 components including the signature Louis Moinet crown guard and the display-back is just as spectacular as the dial-side, with the ‘octopus spring’ of the winding and setting mechanism taking centre stage.

> More Technical Specifications

Technical Specifications

Tourbillon Rosetta Stone is a unique piece and is showcased as part of the Meteoris Solar System.

  • Features and Indications

    Dial crafted in the extremely rare Sahara 99555 meteorite, an authentic meteorite which could hail from the planet Mercury and is believed to be 4.6 billion years old

    Central hours and minutes

    Highly visible main spring

    Superbly-polished and hand-bevelled vertical bridge

    Tourbillon

    Display-back octopus spring

  • Dial and Hands

    Dial crafted in the extremely rare Sahara 99555 meteorite, an authentic meteorite which could hail from the planet Mercury and is believed to be 4.6 billion years old

    Central golden hour and minute hands

  • Movement and Finishing

    Exclusive tourbillon movement

    Winding: Hand-winding 

    Oscillations: 21,600 vph

    Frequency: 3 Hz

    Lines: 14 ½

    Power reserve: 72 hours

    Tourbillon cage: 1 rotation per minute

    Jewels: 19

    Escapement: Side lever 

    Blued-steel screws

  • Case and Strap

    Case: Original design by Louis Moinet, made up of 50 parts

    Material: 18k rose gold

    Diameter: 47mm 

    Water-resistance: 30m

    Caseback secured with six screws, engraved with individual number and Louis Moinet markings

    Crystals: Two sapphire crystals with anti-reflective treatment

    Strap: Louisiana alligator leather, hand-sewn, 24mm width between lugs

    Buckle: 18k rose gold folding clasp with Louis Moinet symbol