====== Rudis Sylva RS05 ======

{{wst>image_cr|Rudis Sylva|RS05}}
{{wst>image_cr|Rudis Sylva|Harmonious Oscillator}}

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. 

<WRAP ud ud_mod>
**Reference:**
  * RS05

**Movement:**
  * [[Manual winding]] [[manufacture movement]], 21.600 A/h
  * Harmonious Oscillator: 2 connected Balance springs on 1 escapement
  * [[Finishing]]:
    * Main plate: [[bevelling]], pyramid [[guilloche]] work
    * Hand-decorated bridges: bevelling, circular [[grainin]]g, 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

**Case:**
  * Pink or White Gold
  * Ø 42.2 mm, H 18.1 mm
  * [[Sapphire crystal]]
  * 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

**Dial:**
  * 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

**Functions:**
  * Hour, minute, seconds
  * Date

**Bracelet:**
  * Alligator leather strap, [[tang-type buckle]]

**Price:**
  *  260,000 SFR (2009)
</WRAP>

{{tag>Watch_models Watches_with_tourbillon Rudis_Sylva_models}}