COVER STORY
MAKING THE RUDIS SYLVA MODEL RS 16 WITH HARMONIOUS OSCILLATOR
Case & Buckle: Polished pink or white 18-karat gold Width: 44mm x 14.3mm with Eric Giroud’ s‘ glass box’
Back decoration: Hand-engraved sundial with grand feu enamel
Hands: Pink or white gold, hand decorated Decoration: Drawing on the both faces, beveling on the flanks Movement: Harmonious Oscillator Dimensions: h. 7.78 mm / 39.55 mm
Winding: Manual, about 49 crown revolutions Power reserve: 70 hours
Main plate: Handcrafted guilloché decoration of tapering pyramids. From the edge to the center of the piece, each guilloché line includes 60 pyramids, each one smaller
than its neighbor, requiring extremely meticulous guilloché.
Bridges: Hand-decorated, beveling, circular graining, Gear train: Circular graining, diamond-polished corners
Second indicator bridge: Machined from titanium and hand-beveled, this bridge includes 28 closed angles. It takes 10 times longer to create a closed angle in titanium than a rounded corner in steel.
Patent: System unique worldwide, patent no. 575 / 09 Balances: Toothed, interlinked, ensuring the same amplitude
Escapement: One with one pallet fork positioned at 90 ° frequency at 21,600 vibrations / hour( 3 Hz) Cage: Rotation 360 ° in 60 seconds; cage diameter is 17.40 mm Balance-springs: Two flat, asymmetric deployment balance-springs constantly opposed
Price: $ 275,000
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WRISTWATCH | 2017