Rudis Sylva

The Harmonious Oscillator

Case material
Pink gold
Bracelet strap
Pin buckle
Water resistance
30 m
ø 44 mm
14 mm
Manual-winding mechanical
Power reserve: 70 h, 21600 variations / hours
Hours, Minutes, Seconds, Tourbillon
RS 10
Price excl.VAT
230'000 CHF

"The Harmonious Oscillator: a watchmaking revolution"

The Harmonious Oscillator,features a system with two mechanically interlinked balances driven by a single escapement. This technical innovation goes against watchmaking theories, which have always ruled out stress on the balances.

With its innovative technicality, this design can boast a more accurate setting capacity than a conventional Tourbillon, thanks in particular to the asymmetric deployment of the balance springs in all positions, hence the name "Harmonious Oscillator". This world first with two toothed balances exhibits a resonance effect from the first oscillations.

Mika Rissanen, a watchmaker specialising in grand complications working for the Rudis Sylva brand, is the brains behind this patented invention. The technical specifications are as follows:

• Two complete toothed balances are interlinked. This combination ensures the same
amplitude. The symmetry and energy of the balance springs are constantly opposed,
enabling instantaneous average correction in the vertical position, which eliminates the
effect of gravity.
• Frequency: 21,600 vibrations/hour (3 Hz)
• The cage turns 360 degrees in 60 seconds
• Cage diameter: 17.40 mm
• 2 flat balance springs, asymmetric deployment
• 2 specifically shaped toothed balances made from special material
• 1 escapement with 1 lever positioned at 90 degrees
• Manual winding mechanism
• Power reserve: around 70 hours

Why is the Harmonious Oscillator more accurate than all existing Tourbillons?

As a general rule, provided that it is in a totally stable situation, a Tourbillon takes a minute to compensate for the effects of gravity when in the vertical position.
The Harmonious Oscillator, by virtue of the interconnection of the balances and the asymmetric deployment of the balance-springs, enables instantaneous correction.

So it is never influenced by the Earth's gravity.
The Harmonious Oscillator provides accuracy far superior to conventional Tourbillons or Karrusels.

This mechanism is close to perfection in terms of setting. The tests performed on various measurement devices give exceptional results, especially for amplitude, in all positions or after 24 hours in the vertical position.
The measured of amplitude deltas are also excellent (difference in degrees amplitude upon position changes).

A number of Master Watchmakers, upon discovering this watchmaking revolution, have declared that there had not been such an important invention since Abraham Breguet's Tourbillon in 1801.