RS05 Pink Gold, Matt Black Dial
RS05 Pink Gold, Matt Black Dial

RS05 White Gold, Matt Black Dial
RS05 White Gold, Matt Black Dial

RS05 White Gold, Silvered Dial
RS05 White Gold, Silvered Dial

RS05 Pink Gold, Matt Black Dial
RS05 Pink Gold, Matt Black Dial


Case: Pink or White Gold 18 cts

Width : 42,2 mm
Height : 18,1 mm
Case finish : polished
Bezel finish : polished
Horn finish : welded, polished and micro-blasted
Inter-horn distance : 26 mm

Back: Pink or White Gold, screwed

Engraving : by hand
Sun dial decoration : hand-engraved with grand feu enamel
Sun dial origin : artisan watchmaker’s farmhouse from 1750, Les Bois
Strap : real alligator, large scales with tassel
Buckle : tongue pink or grey gold 18 cts
Crown : pink gold with machine engraved logo
Brand logo : 3 fir trees on 3 mountains
Logo symbolism : settling of the Jura by clearing, around 1350

Dial: Silvered or matt black

Hand center : hand guilloche work
Hand guilloche work pattern : progressive circular pyramids

Hands: hand decorated

Hand decoration: drawing on the 2 faces, bevelling on the flanks

Movement: The Harmonious Oscillator

Winding : manual, 20 crown revolutions
Power reserve : about 42 hours
Manufacture : made by Rudis Sylva
Purchases from third parties : 7 parts : escapement, stones, spring, Incabloc
Indicators : hours, minutes
Main plate machining : on machine with bed plate, 205 operations
Precision control : 100 % of components

Movement finishes: Haute Horlogerie finishing

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

Harmonious oscillator: Unique system worldwide

Balances : toothed, connected, providing the same amplitude
Escapement : only 1 with 1 pallet fork positioned at 90 degrees
Frequency : 21,600 vibrations/hour (3 Hz)
Cage rotation : 360 degrees in 60 seconds
Cage diameter : 17,40 mm
Balance spring : 2, flat, asymmetric deployment
Balance spring symmetry and energy : constantly opposed
Vertical gravity correction : instantaneous, completely eliminating the effects of gravity