Rudis Sylva - The Geneva Watch Auction: XIX featuring the Guido Mondani Collection Geneva Saturday, May 11, 2024 | Phillips
  • Manufacturer: Rudis Sylva
    Year: Circa 2015
    Reference No: RS12
    Case No: N°06, caseback further engraved "unique"
    Model Name: RS12 Grand Art Horloger Harmonious Oscillator
    Material: 18k white gold
    Calibre: Manual, jeweled
    Bracelet/Strap: Leather
    Clasp/Buckle: 18k white gold Rudis Sylva pin buckle
    Dimensions: 44mm Diameter
    Signed: Case, dial, movement and buckle signed
    Accessories: Accompanied by Rudis Sylvia presentation box.

  • Catalogue Essay

    Rudis Sylva (meaning Rudis’ forest in Latin) was founded by watch industry veteran and enthusiast Jacky Epitaux in 2006 with the idea of creating a ground-breaking movement from scratch.

    Epitaux worked with movement constructor Romain Gillet and watchmaker Mika Rassinen and the result was the Harmonious Oscillator, a monumental movement- and watch - building upon the theoretical conclusion of better timekeeping through resonance. Unlike with F.P. Journe’s resonance movement, the present Harmonious Oscillator functions on physical resonance phenomenon as the balance wheels both have teeth on their rims and touch each other: one driving the other. One balance wheel is linked to the escapement, and it provides the impulse to oscillate the other balance wheel. Each hairspring breathes in the opposite manner to the other, so when one is open, the other is closed.

    As such each balance wheel has the same amplitude and averages the errors of the other, resulting in greater precision. Already technically impressive the balance wheels are mounted on a one-minute rotating carriage, similar to a tourbillon, negating the effects of gravity.

    The movement is monumental but the finish and artistic crafts used are superlative. The large (17.4mm) rotating cage and bridge are beautifully hand finished, in fact just the cage features 28 inward angles!
    The baseplate is fully hand guilloché with a “pyramid” pattern, the caseback is hand engraved and features an enameled representation of an ancient subdial from the region of Les Bois (where the brand is located).

    The attractiveness of this horological masterpiece rises to stratospheric levels by the fact that it is a unique piece made for the Sultan of Oman. The green lacquer dial features Eastern Arabic numerals and a large Khanjar and Crown (the symbol of the Sultanate of Oman).


Ref. RS12
A unique, monumental and cutting edge white gold wristwatch with double balances within a rotating cage, made for the Sultanate of Oman

Circa 2015
44mm Diameter
Case, dial, movement and buckle signed

CHF50,000 - 100,000 

Sold for CHF69,850

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The Geneva Watch Auction: XIX featuring the Guido Mondani Collection

Geneva Auction 11 - 12 May 2024