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Rudis Sylva RS05

Rudis Sylva RS05 (click to enlarge!)
Rudis Sylva RS05
© Rudis Sylva

Rudis Sylva Harmonious Oscillator (click to enlarge!)
Rudis Sylva Harmonious Oscillator
© Rudis Sylva

The RS05 Harmonious Oscillator is a wristwatch by Rudis Sylva.

The brand Rudis Sylva caused a sensation at the BaselWorld 2009 with the presentation of the Harmonious Oscillator RS05, a very beautiful and technically challenging innovation. Since then a range of watches with this invention were launched.

The watch is not only technically captivating, but fascinates also by its visual appearance and a demanding handcrafting.


  • RS05


  • Harmonious Oscillator: 2 connected Balance springs on 1 escapement
    • Main plate: bevelling, pyramid guilloche work
    • Hand-decorated bridges: bevelling, circular graining, drawing
    • Gear train: circular graining, diamond-polished corners
    • Screws: machine threading with controlled undercut
    • Barrel drum: snailed
    • Titanium cage bridge bevelling: 28 inward corners, drawing, 30 hours’ work
  • Power reserve 42 hours


  • Pink or White Gold
  • Ø 42.2 mm, H 18.1 mm
  • Screwed caseback with sun dial decoration: hand-engraved with grand feu enamel
  • The Sun dial origins from artisan watchmaker’s farmhouse from 1750, Les Bois


  • Silvered or matt black
  • Hand guilloche work in progressive circular pyramids pattern
  • Hands: hand decorated
  • Hand decoration: drawing on the 2 faces, bevelling on the flanks


  • Hour, minute, seconds
  • Date



  • 260,000 SFR (2009)
rudis_sylva_rs05.txt · Last modified: 02.12.2022 20:43 by

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