The Tonda 1950 Tourbillon timepiece houses the world’s thinnest automatic flying tourbillon with micro-rotor (3.4mm), manufactured by Parmigiani Fleurier manufacturing centre this mechanical tourbillon movement required two years of research and development. From design to production, each stage involved designers, engineers and master watchmakers working in complete harmony to breathe life into this slim masterpiece.
The tourbillon improves the chronometry of the timepiece thanks to its constant revolutions which distribute the effects of gravity over the complete rotation, eliminating disruptive effects on the mechanism. Parmigiani Fleurier has applied several technical improvements to make the tourbillon’s operation more fluid and regular than ever.
A titanium tourbillon cage – the world’s lightest (0.255 g): The tourbillon cage is usually made from steel, a strong metal which is easy to work. By choosing titanium, Parmigiani Fleurier knew that it had opted for a material which is very flammable during machining, and very difficult to produce in such small dimensions. However, it is thanks to titanium that the Manufacture is able to produce the world’s lightest tourbillon cage. Its very low weight and inertia enable rotational movement with no loss of torque. The tourbillon’s efficiency is increased and the chronometry of the timepiece improved.
A variable inertia balance instead of a screw balance: The tourbillon cage is equipped with an inertia balance which offers a very streamlined design. It differs from a traditional balance, on which the screws protrude outwards. This offers a much more streamlined structure, giving the tourbillon more stability throughout its operation.
A perfectly balanced tourbillon cage reinforced by the seconds hand: On this timepiece, the seconds are indicated by a hand in blued steel which forms an integral part of the tourbillon cage. It performs one revolution per minute, just like the cage. Traditional watchmakers produce this type of hand separately to the tourbillon. It is added later, as the two components come from different production entities. Within the verticalised Parmigiani Fleurier manufacture, the aesthetic development of a product is inseparable from the work of the manufacturing centre. This hand has been designed to precisely counterbalance the weight of the other components that make up the tourbillon cage. The dialogue between all those involved in the creative process is embodied by a perfectly balanced tourbillon cage offering optimal operation.
The final versions - white grained and blue abyss with Côtes de Genève dials – feature the classic Parmigiani Fleurier treatment with their three-faceted indices; those last timepieces adorn the brand’s most exquisite creations.
Model: Tonda 1950 Tourbillon
PFH279 -1202400: white gold case, white jade dial, Hermès alligator strap.
PFH279 -1201400: white gold case, black jade dial, Hermès alligator strap.
PFH279-1000600: rose gold case, blue abyss wit h Côtes de Genève dial, Hermès alligator strap.
PFH279-1266100: white gold set case, grey mother-of -pearl dial, Hermès calf skin strap.
PHF279 -1002400: rose gold case, white grained dial, Hermès alligator strap.
Winding: automatic micro- rotor
Power- reserve: 42 hours
Frequency: 3 H z – 21’60 0 A /h
Dimensions: 14 ¼’ ’’ – Ø 32.0 mm
Thickness: 3 .4 mm
Jewels: 2 9
Barrel (s): 1
Decoration: circular “Côtes de Genève”, bevelled bridges
Hours , minutes
60 -Second Tourbillon
Shape: 3 -part round case
Dimensions: Ø 40.20 mm
Thickness: 8 .65 mm
Material: 18 ct rose gold, 18 ct white gold
Carats: 0 .8043
Water- resistance: 30 m
Glass: anti – reflective sapphire
Crown: Ø 4 .3 mm
Back engraving: individual number
Colour/material: blue abyss, grained white, grey mother-of -pearl, black jade, white jade
Index: rose gold plated appliques, rhodium plated appliqués
Finishing: Côtes de Genève, polished mother-of -pearl, polished jade
Hands: delta - shaped with luminescent coating
Material: alligator, calf
Colour: indigo blue, white, black, havane
Buckle: ardillon, 18 ct rose gold, 18 ct whit e gold
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