RUDIS SYLVA

Rudis Sylva is an independent Swiss Watch brand based in Les Bois in the district of Franches-Montagnes in the canton of Jura in Switzerland. Rudis Sylva watch brand was founded by Jacky Epitaux.

The brand name Rudis Sylva is connected to the origins of traditional watch making in the Franches-Montagnes region. The name Rudis Sylva was derived from Jean Ruedin and Sylva, Latin for ’forest’.

The watchmaking tradition of the Franches-Montagnes region dates back to 1384, the year when a tax exemption was granted to anybody inhabiting the summit of the Jura, at an altitude of 1,000 metres. Having cleared the region’s forests, the population became more settled and the harsh winters forced many farmers to set up as watchmakers. Thus were born the peasant watchmakers, whose industrious devotion to the construction of timepieces led to them becoming widely revered today as the master watchmakers of the Jura Mountains. Rudis Sylva aims to celebrate the skill of these craftsmen who laid the foundations for the prestige enjoyed by the major Swiss watchmaking brands.

Listened to the passionate appeals of one Jean Ruedin, in 1384, Imier de Ramstein had granted a complete tax exemption to inhabitants of the heavily forested region. With the arrival of spring, Jean Ruedin had set out to brave the last remaining snows on the Haut Plateau. Armed with axes and saws, the adventurer set up camp on the slopes bordering the Doubs, a raging river whose course led it through a 400-metre deep canyon. Jean Ruedin and his friends has cleared the forest area and constructed the buildings that would house the very first settlers on the high terrain of the Jura, christened Les Bois (The Woods), Le Noir-Mont (Black Mountain), Les Breuleux (Burning Torches) or even Les Enfers (Hell). And so La Franche Montagne was born.

The Franches-Montagnes or the Franche-Comté region comprised a multitude of artisan watchmakers who would take their products to the counters of shops in La Chaux-de-Fonds and Le Locle. Attracted by the profits made by manufacturing watch and clock components, a large number of farmers gave up agricultural pursuits in the 19th century and began manufacturing machines which allowed them to increase the production of components.

The legendary names associated with the Franches-Montagnes watch making history are Captain Girard, François-J. Froidevaux, J-B Mauvais, Joseph Bouverat (watch case maker), Beaumann (manufacture of wheels, cylinders, cylinder escapement, mechanical parking meter etc.), Huot (manufacture of anchor and cylinder escapements) and Baume  (of famous Baume et Mercier watch brand).

With its independent past, the Rudis Sylva brand has hugely complicated watchmaking history. The artisans of the region, regardless of whether or not they contributed to the production of this timepiece, are the real founders of the Rudis Sylva concept. The sole objective of the brand managers is to connect history and technology to offer the world a product which showcases the expertise of the region in the best possible light.

Official Website: http://www.rudissylva.com/

Rudis Sylva Harmonious Oscillator RS16

In 2016, Independent Swiss luxury watch brand Rudis Sylva, which introduced the world premiere Harmonious Oscillator complication at Baselworld 2009, celebrates its 10th anniversary. The brand unveils its newest model equipped with the iconic Harmonious Oscillator movement manufactured in house by Rudis Sylva.

A contemporary mechanical horology complication, Harmonious Oscillator is considered as an important invention like the Breguet Tourbillon that created over 200 years earlier. The Harmonious Oscillator movement with toothed balances eliminates instantly the effect of gravity in the vertical position. The two toothed balances are interlinked. This link ensures the same amplitude. The symmetry and energy of the balance springs are in permanent opposition, enabling instantaneous average correction in the vertical position.

The latest model RS 16 has been designed by world renowned luxury watch designer Eric Giroud. The Harmonious Oscillator, a highly technical micro-mechanical marvel famed for its gravity-combating capabilities, is always associated with rare feats of craftsmanship such as engraving, enamelling, guillochage and bevelling.

The main plate of the movement features a hand-crafted guilloche decoration of tapering pyramids. Oscillator bridges are hand-bevelled and include 40 inward corners. 28 are bevelled in titanium. Both the movement and the case-back are engraved by hand, with the case-back also featuring grand feu enamel work.

Technical details
Movement
Manual-winding mechanical
Power reserve: 70 h, 21600 variations / hours

Functions
Hours, Minutes, Seconds, Tourbillon

Price
250’000 CHF

Rudis Sylva RS12 Grand Art Horloger

Rudis Sylva RS12 Grand Art Horloger is the third generation of timepieces equipped with the Harmonious Oscillator.  This revolutionary regulator featuring two toothed balances is a unique invention minimising the effects of gravity while boasting highly sophisticated decorative details hand-worked by the region’s finest craftsmen.

When the Harmonious Oscillator was unveiled at Baselworld 2009, many watchmakers declared the invention to be as important as the Breguet Tourbillon created over 200 years earlier.

This horological revolution with toothed balances is the only device in the world that instantly eliminates the effect of gravity in the vertical position. The two toothed balances are interlinked. This link ensures the same amplitude. The symmetry and energy of the balance springs are in permanent opposition, enabling instantaneous average correction in the vertical position.

The Harmonious Oscillator, which is the world’s number one gravity-combating device, is not only an embodiment of technical brilliance; it also appears in only the most lavish surroundings. It is always associated with rare feats of craftsmanship such as engraving, enamelling, guillochage and bevelling.

Rudis Sylva not only invented the Harmonious Oscillator; since its creation in 2006, the brand has also adopted an approach which is exceptional in the world of watchmaking. Its 3 founding shareholders still own the share capital, which has not increased since the company was founded. It’s an approach that cements the credibility of a brand categorised as an independent watchmaker. Rudis Sylva has invested in the production of its own movement. Only 7 of its components are purchased from external suppliers, with the bridges, balances, gears, screws, pinions and other parts all produced in its partner factory, one of the most productive manufacturing sites in the watchmaking world which boasts skilled workers and modern, sophisticated production equipment.

Featuring extraordinary finishes, Rudis Sylva timepieces combine state of the art technology and superb craftsmanship. Understandably, such sophistication cannot be mass-produced, and each piece is unique. Consequently, they enjoy exclusive distribution, with only the world’s top retailers registered as holders of the brand. These retailers guarantee superior horological expertise, and know how to take techniques such as Grand Feu enamelling, engraving, inset bevelling and hand guillochage to their technical heights.

The Harmonious Oscillator
The two toothed balances are interlinked. This link 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.

  • The frequency is 21,600 vibrations/hour (3 Hz)
  • The cage turns 360 degrees in 60 seconds
  • The pallet fork is positioned at 90 degrees
  • The double barrel ensures a power reserve of 70 hours

Second Indicator Bridge: Machined from titanium and hand-bevelled, this bridge includes 28 inward corners. It takes 10 times longer to create an inward corner in titanium than a rounded corner in steel!

Main plate: The lower part of this strategic component features a hand-crafted guilloche decoration of tapering pyramids. From the edge to the centre of the piece, each guilloche line includes 60 pyramids, each one smaller than its neighbour, requiring extremely meticulous guilloche operations.

The engraving: Apparent in the marking on the double barrel bridge, the sun dial or in the text on the back of the watch, the infinitely precise engraving magnifies the skill of the hand-engraver whose painstaking work is carried out under binoculars.

Grand feu enamel: The silica stones are crushed by hand and mixed with water. The resulting material is then applied to the hand-engraved surfaces and placed in an kiln at 840 degrees. Finally, the enamel is polished to obtain a perfect sun dial.

The unique technology offered by Rudis Sylva positions the Harmonious Oscillator above all existing tourbillons, since it is completely freed from the effects of gravity. The hand finishing makes each product unique and pays tribute to the various branches of watchmaking artistry.

Technical details
Reference: RS 12 Grand Art Horloger

Case   
Pink or grey gold 18 cts
Width: 44 mm
Height    : 14.3 mm
Case finish: vertical satin finish
Bezel finish: polished
Horn finish: welded, polished and micro-blasted
Inter-horn distance: 23 mm
Case Back: pink gold or grey gold, screwed ; Hand-engraved sun dial with grand feu enamel
Crown: pink gold or grey gold with machine engraved logo

Dial
Hour, minute and second indicator
Hour and minute indicator ring: sun decoration
Second indicator ring: bevelled
Hand centre: hand guilloche work
Hand guilloche work pattern: progressive circular pyramids
Hands: Gold, hand decorated
Decoration: drawing on the 2 faces, bevelling on the flanks
Main plate: hand guilloche worked, 60 tapering pyramids

Movement   
Harmonious Oscillator
Dimensions: Thickness: 7.78 mm / Diameter: 39.55 mm
Winding: manual, 49 crown revolutions
Power reserve: about 70 hours
Manufacture    made by Rudis Sylva
Purchases from third parties-7 parts: escapement, stones, spring, Incabloc
Indicators: hour, minute, seconds
Main plate machining: on machine with bed plate, 175 operations
Accuracy check : 100% of components

Harmonious oscillator 
System unique worldwide, patent no. 575/09
Balances: toothed, interlinked, ensuring 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-springs: 2, flat, asymmetric deployment
Balance-spring symmetry and energy: constantly opposed
Vertical gravity correction: instantaneous, completely eliminating the effect of gravity

Movement finishes
Haute Horlogerie finishing
Main plate: bevelling, tapering pyramid guilloche work
Bridges: hand-decorated, bevelling, circular graining, drawing
Gear trail: 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)

Strap
Real alligator, large scales with tassel
Buckle: tongue pink gold or grey gold 18 cts

Price
Retail price: CHF 250,000.-

Rudis Sylva Harmonious Oscillator RS05

The Harmonious Oscillator, from Independent Swiss luxury watch brand Rudis Sylva, 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.

Developed based on a calibre dreamed up by Romain Gillet, this system with mechanically interlinked double balances driven by a single escapement will be able to win over watchmakers with a keen eye for performance.

With innovative technicity, this design can boast a more accurate setting capacity than a conventional tourbillon, thanks in particular to the asymmetric deployment of the mainsprings in all positions, hence the name “Harmonious Oscillator”. This world first with two toothed balances exhibits a resonance effect from the first oscillations. The tourbillons run inside a cage with pure but stylised decorations.

Mika Rissanen, a watchmaker specialising in grand complications working for the Rudis Sylva brand, is the author of 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 mainsprings 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 and symmetric mainsprings
• 2 specially shaped toothed balances made from special material
• Pallet fork positioned at 90 degrees
• Manual winding mechanism
• Power reserve: around 50 hours

The Harmonious Oscillator is neither a tourbillon nor a carrousel; however it does have some common points:-
• Every mechanism is mounted on a rotating cage, and completes a full revolution in 60 seconds
• Every mechanism has its own escapement
• The system improves accuracy by counterbalancing disruption of the balance isochronism due to the Earth’s gravity.

What are the major differences between the Harmonious Oscillator and a tourbillon or carrousel?

  • The 3 devices have a complete balance. For the tourbillon, the balance staff is situated on the same line as the tourbillon cage pivots, whereas for the carrousel, the balance staff is eccentric. These two systems take one minute (a full revolution) to compensate for loss of accuracy in the vertical position (effect of gravity).
  • The Harmonious Oscillator, by means of the interconnection of the balances and asymmetric deployment of the mainsprings, enables instantaneous time correction in the vertical position. In the same position, the tourbillon – provided it is in a totally stable position – needs a minute to correct.

In conclusion,the Harmonious Oscillator offers far better accuracy than conventional tourbillons or carrousels. This mechanism is close to perfection in terms of setting.

Movement Finish
Designed, built, machined and then decorated by craft methods, each component has been expressly developed for the Rudis Sylva piece. The bevelling and dashed lines are done entirely by hand. As there is no beveller training system, this manual operation depends exclusively on the craftsman’s talent.

The authenticity of hand bevelling can be seen in the cleanness of the inward and outward corners, which no machine can reproduce with such precision. This finish consists of eliminating the edges between the surface and flanks of the piece, forming a 45 degree chamfer (bezel) which will then be polished. This operation deburrs “machine-processed” components, which besides their unaesthetic nature, could adversely affect the operation of the movement.

Polishing also limits corrosion. This finishing process requires great meticulousness and offers the finest aesthetics. The regulator cage bridge has an innovative and extremely complicated decoration. The piece has a black-coloured 45 degree bevel, giving this highly visible bridge clear proof of the perfection of the work undertaken by the Rudis Sylva brand.

Large Date / Hour and Minute
The large date has been given an innovative design. Made completely in-house, it will eventually have the option of a semi-perpetual date. The hour and minute are displayed on an offset hand guilloche dial using fir tree shaped gold hands. The hands are fitted via the barrel staff. This design is not new, but it has proven essential in order to free space in the cage of the harmonious oscillator.

Hand Guilloche Work On the hour and minute indicating dial, as well as the plate under the oscillator, you can check out the art of hand guilloche work, performed by Georges Brodbeck in his Saignelégier workshop. On the upper part, the guilloche craftsman has made a subtle play by decorating the dial with tapering trapezoids. This decoration is achieved by linear and rotational movement of the piece. The plate under the regulator is adorned with a “clous de Paris” decoration with very fine hand guilloche work, thereby bringing out the richness of the regulating part.

The Enamel Sun Dial
The gold or platinum case back is adorned with an enamelled and hand engraved sun dial. This dial is a reproduction of that adorning the wall of the “Les Rosées” farm, in the village of Les Bois, formerly known as Rudis Sylva. This magnificent structure is one of the most beautiful representatives of the era of the farmer watchmakers and its dial, dating from 1750, was the subject of detailed study by the Zurich Federal Polytechnical School in the 1940s.

The Engraving
In the 19th Century, the engravers from our mountains had multiple fields of activity: medals, stamps, bank notes, prints, image reproduction, jewellery and watchmaking. 2 centuries later, the development of mechanical, chemical or laser engraving industrial techniques has completely altered the engraver’s daily work. Only extremely haute horlogerie pieces are now entitled to the craftsman’s touch.

The La Chaux-de-Fonds craftsmen Sylvain Bettex and Bertrand Degiorgi have applied their finest work to the hidden face of the timekeeper. Purists will appreciate the chisel work, which cuts to the heart of the flawless lettering with regular bevelling and perfect symmetry, revealing moreover a polished cut completely free from burrs. This chisel modelling outstrips the “handicraft” of any machine work, and further distinguishes a watch born out of regional talents.

The Enamelling
Tucked away in a farm in the peaceful hamlet of Les Barrières, Sophie Cattin Morales practices the art of enamelling in her timeless workshop. As a child she lived on the Les Rosées-Dessous farm that houses the “Ultima Forsan” sun dial dating from 1750. So it was an obvious step to call on her talent to enhance the reproduction of the fresco on the back of the Rudis Sylva watch.

Like a farmer-watchmaker of yesteryear, Sophie, leaning over her window sill, works the enamel bathed in natural light. With her mastery of the traditional technique, she transforms the pieces of raw enamel, grinding them in an agate mortar until the desired grain is obtained. Then she washes them to eliminate any foreign bodies, before finally undertaking the enamelling itself. The enamels are applied using a brush in the champlevés in the gold piece.

Dried out, and then fired in a kiln at around 840 degrees, the enamelled half-moon is then stoned to obtain a flat surface, and then put back in the kiln to undergo a final operation, known as glazing. After the enamel surface has been glazed to give it a shine, it undergoes a final polish. Making the colours eternal, unalterable by light: this is the power and privilege of the art of enamelling.

Technical details

Case
Pink or grey gold 18 cts
Width: 42.2 mm
Height: 18.1 mm
Case and bezel in polished finish
Horns: welded, polished and micro-blasted
Inter-horn distance 26 mm
Crown: Pink gold with machine engraved logo
Case back in pink or grey gold, screwed, engraved by hand. The Sun dial decoration is 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

Movement
The Harmonious Oscillator manual winding movement
Power reserve: about 42 hours
Manufacture made by Rudis Sylva

Indicators
Hours, minutes

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
System unique worldwide, patent no. 575/09
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

Strap

Real alligator, large scales with tassel
Buckle: tongue pink or grey gold 18 cts
Brand logo 3 fir trees on 3 mountains
Logo symbolism settling of the Jura by clearing, around 1350

Retail price
Pink gold or white gold model: 260’000.- Swiss Francs.