Piaget – Master of Ultra Thin Calibres

In half a century of expertise and innovations, the Manufacture de Haute Horlogerie Piaget has asserted itself as the specialist and leader in the field of ultra-thin movements. Out of 35 Manufacture made movements, the House has developed a complete range of 23 ultra-thin calibres that have earned 12 records for their extreme slenderness.

These peerless skills that have become an authentic Piaget signature are synonymous with elegance. They display equal panache in three main areas: base movements (hand-wound or automatic); calibres with major complications (Tourbillon, Perpetual Calendar, Chronograph, Minute Repeater); and open-worked or “skeleton” movements including gem-set open worked calibres – an art in which the Manufacture de Haute Horlogerie Piaget displays exclusive mastery.

Founded in 1874 in La Côte-aux-Fées in the Swiss Jura, the Manufacture Piaget immediately established itself thanks to the precision, the sturdiness and the reliability of its movements. In 1957, the Manufacture played a pioneering role by presenting its first ultra-thin movement, the famous Calibre 9P (just 2 mm thin), one of the world’s thinnest mechanical hand-wound movements.

Piaget Ultrathin Calibre 9P

Piaget Ultrathin Calibre 9P

  • Manufacture Piaget ultra-thin mechanical hand-wound  movement
  • Movement thickness: 2 mm
  • Casing dimensions: 9’’’ (ø 20.5 mm)
  • Number of jewels: 18
  • Frequency : 19,800  vibrations/hour (2.75 Hz)
  • Power reserve: approx. 36 hours
  • Finishing: Vertical Côtes de Genève, circular-grained  mainplate, bevelled and hand-drawn bridges, blued screws
  • Functions: Hours, minutes

In 1960 came another feat with the creation of Calibre 12P, one of the thinnest automatic movements in the world (2.3 mm) – an accomplishment made possible by the ingenious integration of an offset micro-rotor, a peerless technical accomplishment at the time in the field of ultra-thin watchmaking.

Piaget Ultrathin Calibre 12P

Piaget Ultrathin Calibre12P

  • Manufacture Piaget ultra-thin mechanical self-winding movement
  • Movement thickness: 2.3 mm
  • Casing dimensions: 12’’’ ½ (ø 28.1mm)
  • Number of jewels: 30
  • Frequency : 19’800  vibrations/hour (2.75 Hz)
  • Power reserve: approx. 36 hours
  • Finishing: Vertical Côtes de Genève, circular-grained mainplate, bevelled bridges
  • Functions :  Hours, minutes

Ultra-thin movements thus became a brand signature, one of its undisputed strongholds, by enabling it to express its creativity. This is because these miniature masterpieces are not just a token of peerless technical prowess; they are naturally designed and developed to ensure seamless integration within the case.

Thanks to their slenderness and to their diminutive size, ultra-thin movements give the Piaget designers scope for all manner of daring options: ultra-thin cases, hard stone dials, jewellery watches, coin watches, special-shaped cases, etc.

In 1998, the Manufacture relaunched its iconic Altiplano line, entirely dedicated to these movements. The mastery of ultra-thin watchmaking thus lies at the very core of the identity that Piaget has been cultivating for half a century in a close-knit alliance between technical and aesthetic aspects. It has also enabled Piaget to earn benchmark status within the narrow circle of fully integrated watch Manufactures.

Developing and producing an ultra-thin movement involves sophisticated technical challenges to which Piaget rises with a blend of expertise and experience handed down over several generations. Even the most “simple” ultra-thin movement (hours/minutes) is already a full-fledged complication.

This is because it implies mastering all the intricacies of the watchmaking art and of miniaturisation in order to push back the technical boundaries of the components and transcend existing watch industry conventions – while simultaneously ensuring long-term solidity and performance.

Taking the ultra-thin option entails additional difficulties at each stage of design, production, adjustment and finishing. The development of a new calibre may take anything from two to four years. It involves fitting the mainplate along with countless wheels, pinions, arbors, levers, jewels, bridges, springs, etc. into a space sometimes barely two millimetres thin, as well as naturally making the parts themselves as thin as possible. By way of example, certain wheels are no thicker than 0.12 mm (compared with 0.08 mm for a single hair). Specialists meticulously test the resistance capacities of the various components in order to ensure their smooth operation. Managing the minimal spaces between the moving parts also plays an important role.

So as to turn freely and guarantee optimal reliability, each wheel must feature a certain “clearance” – ideally three hundredths of a millimetre. During the assembly of an ultra-thin Piaget calibre (a stage calling for extreme dexterity given that some movements comprise over 400 components), the clearances for each wheel of each movement are manually checked by a watchmaking expert.

Ultra-thin base movements (small seconds)
Since its two stellar calibres presented in 1957 and 1960, Piaget has distinguished itself through an entire range of ultra-thin hours/minutes movements, to which a small seconds may be added.

Piaget Ultrathin Calibre 430P

Piaget Ultrathin Calibre 430P

  • Manufacture Piaget ultra-thin mechanical hand-wound movement
  • Movement thickness: 2.1 mm
  • Casing dimensions: 9’’’ (ø 20.5 mm)
  • Number of jewels: 18
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 43 hours
  • Finishing: Circular Côtes de Genève, circular-grained mainplate and bridges, bevelled bridges, blued screws
  • Functions: Hours, minutes

The realm of hand-wound movements notably includes Calibre 430P (2.1 mm thin) and its rectangular version (438P, also 2.1 mm).

Piaget Ultrathin Calibre 438P

Piaget Ultrathin Calibre 438P

  • Manufacture Piaget ultra-thin mechanical hand-wound movement
  • Movement thickness: 2.1 mm
  • Casing dimensions: 10’’’3/4 x 9’’’ (ø 23.7 mm x 20.3 mm)
  • Number of jewels: 19
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 43 hours
  • Finishing: Circular Côtes de Genève, circular-grained mainplate and bridges, bevelled bridges, blued screws
  • Functions: Hours, minutes

A worthy heir to the 9P, it is still one of the world’s thinnest movements and is renowned for its reliability. The 450P (2.1 mm) also feature a small seconds subdial at 10 o’clock.

Piaget Ultrathin Calibre 450P

Piaget Ultrathin Calibre 450P

  • Manufacture Piaget ultra-thin mechanical hand-wound movement
  • Movement thickness: 2.1 mm
  • Casing dimensions: 9’’’ (ø 20.5 mm)
  • Number of jewels: 18
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 43 hours
  • Finishing: Circular Côtes de Genève, circular-grained mainplate and bridges, bevelled bridges, blued screws
  • Functions: Hours, minutes, small seconds at 10 o’clock

The third-generation hand-wound movements (830P, 832P and 838P, all 2.1 mm) stand out for their larger diameter and their approximately 60-hour power reserve.

Piaget Ultrathin Calibre 830P

Piaget Ultrathin Calibre 830P

  • Manufacture Piaget ultra-thin mechanical hand-wound movement
  • Movement thickness: 2.5 mm
  • Casing dimensions: 12’’’ (ø 26.8 mm)
  • Number of jewels: 19
  • Frequency: 21,600 vibrations/hour (3 Hz),
  • balance with screws
  • Power reserve: approx. 60 hours
  • Finishing: Circular Côtes de Genève, circular-grained mainplate, bevelled bridges, blued screws
  • Functions: Hours, minutes

The 838P also has a small seconds subdialat 10 o’clock, while the 833P specially developed for the Piaget Altiplano Double Jeu watch (two superimposed cases) features a 24-hour display.

Piaget Ultrathin Calibre 838P

Piaget Ultrathin Calibre 838P

  • Manufacture Piaget ultra-thin mechanical hand-wound movement
  • Movement thickness: 2.5 mm
  • Casing dimensions: 12’’’ (ø 26.8 mm)
  • Number of jewels: 19
  • Frequency: 21,600 vibrations/hour (3 Hz),
  • balance with screws
  • Power reserve: approx. 60 hours
  • Finishing: Circular Côtes de Genève, circular-grained mainplate, bevelled bridges, blued screws
  • Functions: Hours, minutes, small seconds at 10 o’clock

When it comes to automatic calibres, Piaget marked the 50th anniversary of the legendary 12P in due style by presenting two record-breaking thin calibres in 2010: the 1200P (hours/minutes), the world’s thinnest automatic movement at 2.35 mm thin; and the 1208P (with small seconds at 5 o’clock).

Piaget Ultrathin Calibre 1200P

Piaget Ultrathin Calibre 1200P

  • Manufacture Piaget ultra-thin mechanical self-winding movement
  • The world’s thinnest self-winding movement
  • Movement thickness: 2.35 mm
  • Casing dimensions: 13 ¼’’’ (ø 29.9 mm)
  • Number of jewels: 25
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 44 hours
  • Finishing: Circular Côtes de Genève, circular-grained mainplate, bevelled bridges, blued screws,
  • circular-grained wheels with sunburst motif,“P” fixed to the regulator-assembly as Piaget signature, platinum oscillating weight (engraved with the number of limited editions when relevant.)
  • Functions: Hours, minutes
  • Available with a pink gold coloured platinum oscillating weight

 

Piaget Ultrathin Calibre 1208P

Piaget Ultrathin Calibre1208P

  • Manufacture Piaget ultra-thin mechanical self-winding movement
  • The world’s thinnest self-winding movement
  • Movement thickness: 2.35 mm
  • Casing dimensions: 13 ¼’’’ (ø 29.9 mm)
  • Number of jewels: 27
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 44 hours
  • Finishing: Circular Côtes de Genève, circular-grained mainplate, bevelled bridges, blued screws,
  • circular-grained wheels with sunburst motif, “P” fixed to the regulator-assembly as Piaget signature, 22K pink gold oscillating weight
  • Functions: Hours, minutes, small seconds at 5 o’clock

This line is resolutely dedicated to technical feats, as confirmed by the latest addition to this category: the 1205P, the world’s thinnest automatic movement with date mechanism (3 mm).

Piaget Ultrathin Calibre 1205P

Piaget Ultrathin Calibre 1205P

  • Manufacture Piaget ultra-thin mechanical self-winding movement
  • The world’s thinnest self-winding movement with date
  • Movement thickness: 3 mm
  • Casing dimensions: 13’’’ ¼ (ø 29.9 mm)
  • Number of jewels: 27
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 44 hours
  • Finishing: Circular Côtes de Genève, circular-grained  mainplate, bevelled bridges, sunburst brushed wheels, blued screws, “P” fixed to the regulator-assembly as Piaget signature, 22K pink gold oscillating weight
  • Functions: Hours, minutes, small seconds at 5 o’clock, date at 9 o’clock

Mastery of ultra-thin complications
In its ongoing pursuit of extreme slenderness and the infinitely small, Piaget has also explored the field of major complications. Such models involve two sets of challenges: the first due to the fact that complicated movements are already particularly difficult to develop; and the second because they then need to be miniaturised even more, while ensuring they remain as smoothly operational as ever. Making light of such obstacles, Piaget has developed within a decade four major ultra-thin complications interpreted through 10 movements. The latter are produced in a specialised workshop in La Côte-aux-Fées, Piaget’s historical birthplace.

Piaget Ultrathin Calibre 600P

Noblesse oblige, the Manufacture paid tribute to the tourbillon by presenting hand-wound Calibre 600P, the world’s thinnest shaped tourbillon movement (3.5 mm thin).

Equipped with a flying tourbillon, this rectangular movement is distinguished by its extra-light carriage composed of 42 elements (weighing only 0.2 gr and featuring three titanium bridges), topped with the P for Piaget, and by its extremely refined finishes.

Piaget Ultrathin Calibre 600P

  • Manufacture Piaget ultra-thin mechanical hand-wound tourbillon movement
  • The world’s thinnest hand-wound shaped tourbillon movement
  • Movement thickness: 3.5 mm (4.5 mm including carriage)
  • Casing dimensions : 12’’’3/4 x 10’’’ (ø 28.6 mm x 22.4 mm)
  • Number of jewels: 24
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 44 hours
  • Flying tourbillon positioned at 12 o’clock, one rotation per minute
  • Tourbillon carriage: 3 titanium bridges, weight of the tourbillon carriage: 0.2 g
  • Finishing: Circular Côtes de Genève, mainplate and bridges circular-grained by hand, hand-drawn
  • and hand-bevelled bridges and carriage, blued screws
  • Functions: Hours, minutes, seconds at 12 o’clock(flying tourbillon), power-reserve indicator at 6 o’clock

It has itself been introduced in in two evolved versions with an astronomical moon-phase (640P, 642P). Piaget has also reinterpreted the field of automatic tourbillons in ultra-thin mode.

Piaget Ultrathin Calibre 640P

Piaget Ultrathin Calibre 640P

  • Manufacture Piaget ultra-thin mechanical hand-wound tourbillon movement
  • The world’s thinnest hand-wound shaped tourbillon movement
  • Movement thickness: 3.5 mm (4.5 mm including carriage)
  • Casing dimensions: 12’’’3/4 x 10’’’ (ø 28.6 mm x 22.4 mm)
  • Number of jewels: 23
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 44 hours
  • Flying tourbillon positioned at 12 o’clock, one rotation per minute
  • Tourbillon carriage: 3 titanium bridges, weight of the tourbillon carriage: 0.2 g
  • Finishing: Circular Côtes de Genève, mainplate and bridges circular-grained by hand, hand-drawn and hand-bevelled bridges and carriage, blued screws
  • Functions: Hours, minutes, seconds at 12 o’clock, (flying tourbillon), lapis lazuli and gold moon-phase indicator at 6 o’clock (the latter is referred to as “astronomical” because of its extreme precision that varies by only one day in 122 years)
Piaget Ultrathin Calibre 642P


Piaget Ultrathin Calibre
642P

  • Manufacture Piaget ultra-thin mechanical hand-wound tourbillon movement
  • The world’s thinnest hand-wound shaped tourbillon movement
  • Movement thickness: 4 mm (4.5 mm including carriage)
  • Casing dimensions:  12’’’3/4 x 10’’’ (28.6 mm x 22.4 mm)
  • Number of jewels: 23
  • Frequency: 21,600 vibrations/hour (3Hz)
  • Power reserve: approx. 44 hours
  • Flying tourbillon positioned at 12 o’clock, one rotation per minute
  • Tourbillon carriage: 3 titanium bridges, weight of the tourbillon carriage: 0.2 g
  • Finishing: Circular Côtes de Genève, mainplate and bridges circular-grained by hand, hand-drawn
  • and hand-bevelled bridges and carriage, blued screws
  • Functions: Hours, minutes, seconds at 12 o’clock
  • (flying tourbillon), moon-phase indicator at 6 o’clock (the latter is referred to as “astronomical” because of its extreme precision that varies by only one day in 122 years)

Calibre 1270P, one of the world’s thinnest automatic movements at just 5.5 mm thick derives its virtues from Piaget Calibre 600P – the world’s thinnest hand-wound shaped tourbillon movement – as well as from Piaget Calibre 1208P – the world’s thinnest automatic movement equipped with a micro-rotor.

Piaget Ultrathin Calibre 1270P

Piaget Ultrathin Calibre 1270P

  • Manufacture Piaget ultra-thin mechanical self-winding  tourbillon movement
  • Movement thickness: 5.5 mm (5.7 mm including carriage)
  • Casing dimension: 15 ½’’’ (ø 34.9 mm)
  • Number of jewels: 35
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 40 hours
  • Tourbillon carriage flying tourbillon at 1 o’clock
  • Finishing: Circular Côtes de Genève from the centre of the tourbillon, sunburst satin-brushed guilloché mainplate starting from the center of the hands on dial side, circular-grained mainplate and bridges, hand-drawn mainplate, hand-bevelled, hand-circular-grained,hand-drawn and sunburst satin-brushed bridges,circular satin-brushed wheels, sunburst satin-brushed barrel cover, blued screws, guilloché platinum oscillating weight
  • Functions: Hours, minutes, seconds , flying tourbillon at 1 o’clock, power-reserve indicator on the back
  • Also available with pink gold colour or black oscillating weight in limited edition

In an especially refined aesthetic detail, the ultra-light tourbillon carriage of the 1270P, topped with the P initial, entwines with its off-centred micro-rotor (visible on the dial side) to form a figure 8. This means that the traditional watchmaking conventions are reversed and that the bridges are placed on the dial side.

Piaget Ultrathin Calibre 1270S
The 1270S is a light, airy descendant of the iconic 1270P calibre, Piaget’s first ultra-thin tourbillon automatic movement. This caliber is the end result of adding the complexity of the infinitely small to the constraints implied by a horological complication and its numerous components, further compounded by the automatic winding mechanism bearing in mind that most skeleton movements on the market are hand-wound. It took no less than three years to develop this exceptional calibre, to accommodate 225 parts within a barely 5.05-millimetre area and to skeleton-work it while ensuring impeccable operation.
Precise calculations and painstaking development work made it possible to exalt the totally unique and identifiable aesthetic of the shaped 1270S calibre, one of the world’s thinnest tourbillon automatic skeleton movements at just 5.05 mm thick. In addition to the majestic tourbillon, the inverted structure of this movement provides a view of the platinum oscillating weight and bridges.
Technical details
  • Manufacture Piaget 1270S, mechanical automatic
  • Functions: hours and minutes, tourbillon at 1 o’clock
  • Power reserve: approx. 40h
  • Thickness: 5.05 mm (movement) & 8.85 mm (case)
  • Frequency:21,600 vph (3Hz)
  • Dimensions: 34.98 mm (15”’ 1/2)
  • Number of jewels: 35
  • Parts: 225
  • Finishing: hand-bevelled and polished satin-brushed mainplate, hand-bevelled and polished satin-brushed bridges, hand-drawn mainplate and bridges, black PVD or pink gold screws with blind hole, mirror-polished screw feet, satin-brushed wheels, bevelled and satin-brushed barrel, black PVD-coated or guilloché pink gold, satin-brushed, hand-bevelled and polished oscillating weight.

Another major traditional complication, the perpetual calendar, has been given a whole new face in extra-thin Calibre 855P – one of the world’s thinnest perpetual calendar movements (5.6 mm thin) – also equipped with retrograde day and date indications, as well as with a dual time function.

Piaget Ultrathin Calibre 855P

Piaget Ultrathin Calibre 855P

  • Manufacture Piaget ultra-thin mechanical self-winding perpetual calendar movement
  • Movement thickness: 5.6 mm
  • Casing dimensions: 12 ½’’’ (ø 28.4 mm)
  • Number of jewels: 38
  • Frequency: 21,600 vibrations/hour (3 Hz),balance with screws
  • Power reserve: approx. 80 hours (double barrel)
  • Finishing: Circular Côtes de Genève, circular-grained mainplate, bevelled bridges, blued screws
  • Functions: Hours, minutes, small seconds at 4 o’clock, dual time-zone indicator at 8 o’clock with day/night indicator synchronised with the main time zone, retrograde days-ofthe-week indicator at 9 o’clock, retrograde date at 3 o’clock, month and leap-year indicator at 12 o’clock
  • Available with black PVD oscillating weight and as part of an exclusive series featuring a 25 diamond-set (approx. 0.2 ct) oscillating weight (856P)

In the field of chronographs, Piaget offers one of the thinnest such automatic movements on the market (5.6 mm): the 800P, a flyback chronograph with column wheel, vertical coupling-clutch and 24-hour dual-time display.

In 2013, the Manufacture introduced a master stroke – this time of a musical nature – in the form of Calibre 1290P. Already the world’s thinnest automatic minute repeater watch (4.8 mm), this model also features a cushion shape that further increased the difficulties involved in its development. Despite its extreme slenderness, this movement stands out in terms of its exceptional sound performances.

Piaget Ultrathin Calibre 1290P

Assembling a single calibre represents 10 full days of work, including 25 for the casing up alone. An authentic Fine Watchmaking masterpiece, the 1290P is adorned with “Image” finishes performed exclusively by hand with a file (250 hours of work) and embodying a unique blend of traditional and modern elements.Movements featuring such finishes are ennobled by the House motto “Always do better than necessary.”

Piaget Ultrathin Calibre 1290P

Piaget Ultrathin Calibre 1290P

  • Manufacture Piaget ultra-thin mechanical self-winding minute repeater movement
  • The world’s thinnest self-winding minute repeater movement
  • Movement thickness: 4.8 mm
  • Casing dimensions: 15 ½’’’ (ø 34.9 mm)
  • Number of jewels: 44
  • Frequency: 21,600 vibrations/hour (3Hz)
  • Power reserve: approx. 40 hours
  • Finishing: Case-back side: Circular Côtes-de-Genève,bridges hand-bevelled and hand-drawn with a file, surnburst satinbrushed wheels, pink or black toned polished screws,“P” fixed to the regulator-assembly as Piaget signature, pink or black coloured platinum oscillating weight
  • Dial side: sunburst satin brushed and guilloche mainplate hand-bevelled and hand-drawn with a file, sunburst or circular satin brushed steel components hand-bevelled and hand-drawn with a file, black or polished screws
  • Functions: Hours, minutes

Ultra -thin skeletonised movements
Vividly demonstrating virtuoso horological skills, these movements call for additional expertise in that the mainplate must be openworked as much as possible, which means keeping only the indispensable bridges and other parts. This work is rendered all the more delicate by the fact that each component of an ultra-thin movement is already miniaturised in the extreme.

Piaget took its first steps in the domain of extra-thin openworked movements in 1975-1976, with a skeleton version of the 9P. Since 2004, a whole range of simple of complicated movements featuring an ethereal design has been introduced, including the hand-wound Calibre 939S (hours/ minutes/small seconds, 2.7 mm thin); the automatic 1200S (hours/minutes; 2.4 mm); as well as the fascinating 600S (hand-wound skeleton tourbillon, 3.5 mm).

Openworking the world’s thinnest movement, the 1200S, naturally requires superlative mastery. Engraving and hollowing out this masterpiece without adversely influencing its rigidity – and thus its smooth operation – is a task reserved for the world’s finest artisans. Further upstream in the creative process, meticulous development and calculations had to be performed in order to design the world’s thinnest skeleton automatic movement without diminishing its resistance and its reliability.

Piaget Ultrathin Calibre 1200S

The design team was called into action to makethis movement as rigid as possible: long curves crossing the main plate and the bridges harmoniously ensure this crucial overall rigidity. It took over three years of research and development to perfect Piaget Calibre 1200S. Compared with Piaget Calibre 1200P, from which it is derived, the new Calibre 1200S features a number of innovations.

In addition to the 950 platinum micro-rotor – which is part of the exclusive character of this exceptional movement – the balance-bridge reveals an harmonious and symmetrical new aesthetic. The hour-wheel bridge has been further slimmed down to a minimal 0.11 mm lateral thickness in order to achieve the extreme slenderness of this movement featuring unprecedented dimensions. Remarkably, this quest for the infinitely small is teamed with exceptional decoration.

Stylistic effects are based on alternating matt sunburst and sandblasted surfaces contrasting with the brilliance of the angles, as well as on variations of rhodium-plated or black colours. The eminently contemporary and architectural Piaget Calibre 1200S takes the art of skeleton-working into a whole new dimension, with resolutely modern lines displaying profound respect for traditional craftsmanship.

Piaget Ultrathin Calibr 1200S

  • Manufacture Piaget ultra-thin mechanical self-winding skeleton movement
  • The world’s thinnest automatic skeleton movement
  • Movement thickness: 2.4 mm
  • Casing dimensions: 14’’’ ¼ (ø 31.9 mm)
  • Number of jewels: 26
  • Frequency: 21,600 vibrations/hour (3Hz)
  • Power reserve: approx. 44 hours
  • Finishing: sunburst satin-brushed plate and bridges, hand-drawn and hand-bevelled bridges and mainplate, circular and sunburst satin-brushed wheels, black screws, “P” fixed to the regulator-assembly as Piaget signature, black platinum oscillating weight
  • Functions: Hours, minutes
  • Also available in slate grey colour with pink gold colour oscillating weight and pink gold screws

Ultra-thin gem-set skeletonised movements
It takes perfect mastery of the art of openworking to dare to imagine setting these exceptional movements, because gem-studded skeletonised movements imply additional mastery of setting techniques on the finest possible components. Piaget is currently the only Manufacture to set gems directly on the mainplate of its movements, including the functional parts. This unique expertise calls for the closest possible collaboration between watchmakers and jewellers – thereby uniting the twin fields of in-house excellence.

The Manufacture reached a new milestone in 2005 by gem-setting, for the very first time, not only the decorative parts and additional plates on a skeleton movement, but indeed the entire gold main plate and the functional parts. Representing the ultimate embodiment of this know-how that is truly unique in the world, Calibre 600D (3.5 mm thin) was presented in 2005 and followed in 2010 by Calibre 838D (3.1 mm) – which prefigured another stunning illustration of the watchmaking art unveiled at the SIHH 2013: Calibre 1200D (2.4 mm), the first gem-set openworked automatic movement.

Piaget Ultrathin Calibre 600D


Piaget Ultrathin Calibre 600D

  • Manufacture Piaget ultra-thin mechanical hand-wound diamond-set skeleton tourbillon movement
  • The world’s thinnest hand-wound shaped tourbillon movement
  • Movement thickness: 3.5 mm (4.5 mm including carriage)
  • Casing dimensions: 12’’’3/4 x 10’’’ (ø 28.6 mm x 22.4 mm)
  • Number of jewels: 23
  • Frequency: 21,600 vibrations/hour (3 Hz)
  • Power reserve: approx. 44 hours
  • Flying tourbillon positioned at 12 o’clock, one rotation per minute
  • Tourbillon carriage: 3 titanium bridges, weight of the tourbillon carriage: 0.2 g
  • Finishing: Sunburst guilloché motif on bridges, 18K white or pink gold mainplate set with 160 diamonds (approx. 0.4 ct) and 7 blue  cabochon-cut  sapphires (approx. 0.2 ct), mainplate and bridges circular-grained by hand, hand-drawn and hand-bevelled bridges and carriage
  • Functions: Hours, minutes, seconds at 12 o’clock (flying tourbillon)
  • Numbered movement

 

Piaget Ultrathin Calibre  838D

Piaget Ultrathin Calibre 838D

  • Manufacture Piaget ultra-thin mechanical hand-wound diamond-set skeleton movement
  • Movement thickness: 3.1 mm
  • Casing dimensions: 12’’’ (ø 26.8 mm)
  • Number of jewels: 19
  • Frequency: 21,600 vibrations/hour (3 Hz),balance with screws
  • Power reserve: approx. 60 hours
  • Finishing: 18K white gold mainplate set with 219 diamonds (approx. 0.6 ct) and 8 black cabochon-cut sapphires (approx. 0.2 ct), hand circular-grained mainplate and bridges, hand-drawn and hand-bevelled mainplate and bridges, sunburst guilloché motif on the case-back side, circular satin-brushed wheels, blued screws
  • Functions: Hours, minutes, small seconds at 10 o’clock
  • Available in an 18K pink gold version set with 219 diamonds (approx. 0.6 ct) and 8 cabochon-cut rubies (approx. 0.2 ct)

Piaget Ultrathin Calibre 1200D
A descendant of the already automatic skeleton 1200S calibre and its unrivalled slenderness, Calibre 1200D is the 34th movement entirely developed and crafted by the Manufacture in 15 years. For this unprecedented feat part way between watchmaking and jewellery, the development alone mobilised the entire range of skills cultivated within the Manufacture for a full two years.

Piaget Ultrathin Calibre 1200D

Reflecting Piaget’s unique mastery, this movement is the world’s thinnest in its category at 3.00 mm and is set with 259 brilliant-cut diamonds (approx.0.8 cts) and 11 black cabochon-cut sapphires (approx. 0.2 cts) within a 31.9 mm diameter. This exceptional gem-setting involves over four days of work for just one movement.

Piaget Ultrathin Calibre 1200D

Setting the entire mainplate entails also paving the functional parts – a constant challenge that only a rare breed of jewellers are capable of handling.

Technical details

  • Manufacture Piaget ultra-thin mechanical self-winding diamond-set skeleton movement
  • The world’s thinnest self-winding diamond-set skeleton movement
  • Movement thickness: 3 mm
  • Casing dimensions: 14 ¼ ’’’ (ø 31.9 mm)
  • Number of jewels: 26
  • Frequency: 21,600 vibrations/hour (3Hz)
  • Power reserve: approx. 44 hours
  • Finishing: 18K white gold mainplate set with 259 brilliantcut diamonds (approx. 0.8 ct) and 11 black cabochon-cut sapphires (approx. 0.2 ct), hand-bevelled and hand-drawn mainplate and bridges, sunburst satin-brushed bridges,  circular and sunburst brushed wheels, black screws, “P” fixed to the regulator-assembly as Piaget signature, black  platinum oscillating weight
  • Functions: Hours, minutes

Considered today as the master of ultra-thin watchmaking, the Manufacture de Haute Horlogerie Piaget is relentlessly pursuing this quest for excellence. Constantly reinventing its motto “Always do better than necessary”, and nurtured by this unique history that has forged exceptional mastery, Piaget achieves the perfect match between the art of horology, ultra-thin feats and exceptional design.

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