Jaeger-LeCoultre

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Part 4 - A Commercial break (Press Release)

Compressor Chronograph
Master Compressor Extreme World Chronograph:
when the hand of time is pointing to sport.


The Master Compressor Chronograph and the Master Compressor Extreme World Chronograph represent a new horological peak for the master-watchmakers of Jaeger-Le Coultre. Melding sporting spirit and technical prowess as never before, their design is distinguished by its use of contrasting colours and clads an entirely new movement ? Jaeger-LeCoultre?s first ever self-winding chronograph calibre.


The dazzling success of the Master Compressor line has given wings to creativity of a kind unique to Jaeger-LeCoultre, the only Manufacture in the world that carries out every single one of the innumerable different operations and tasks that go into building a world-class timepiece in its own workshops. A single glance suffices to confirm that these new designs have all the decisive, masculine characteristics that have made the Master Compressor line so beloved of sports enthusiasts.

The Master Compressor Chronograph houses Jaeger-Le Coultre?s brand-new automatic chronograph movement. The eye is immediately attracted by the expressive energy which endows its tough exterior with an irresistible touch of audacity.


(Master Compressor Extreme World Chronograph, Titanium movement case with Platinum housing, Limited to 200 Pieces only - This is the first time this photo is published publicly)

As one would expect of a watch bearing such a name, the Master Compressor Extreme World Chronograph displays the time in each of its time zones on a disc controlled by a double-pronged hand which completes a rotation every 24 hours. The Manufacture?s designers have endowed the generously proportioned case with patented features including compression keys and the chronograph push-buttons, while its engineers have contributed a new anti-shock device which considerably attenuates the effects of vibrations and other disturbances on the smooth running of the watch.

Twin limited editions will crown the launch of the new Master Compressor Extreme World Chronograph: 200 watches with titanium casing and platinum shaft will be produced, along with a larger series in titanium and steel.



A chronograph movement of sublime creation.

In all sporting disciplines, prowess is as much a matter of technique as it is of physical strength. So it is also with the two Master Compressor Chronographs, which conceal within their movements the kinds of treasures of ingenuity that have characterised the innovative spirit of Jaeger-Le Coultre for nearly two centuries now. As this tradition of excellence demands, for its first self-winding chronograph the Manufacture has developed a movement with an oscillating speed of 28,800 vibrations per hour and has opted for a complex column-wheel, the only type of construction worthy of the Jaeger-Le Coultre signature. The exceptional 72-hour power reserve further increases the watch?s reliability, so that its happy owner can rest assured that the information provided by his Master Compressor Chronograph will be of exemplary accuracy.

When you?re pushing yourself to new limits on the track or slope, there?s no time for shillyshallying. Starting the chronograph immediately sets the central second hand on its course around the dial. There is not the slightest hesitation: the pointer begins to make its circuit without first observing that momentary pause unhappily characteristic of so many other chronographs. The reason for the superior operation of Jaeger-LeCoultre?s new chronographs lies in their use of a vertical coupling rather than the more traditional lateral version. Obviously, this is a more complicated solution than that employed by other watchmakers, but it is also the only one that guarantees both optimal timekeeping and the absolute precision of the chronographic functions. Unlike a lateral coupling, a vertical one allows the chronograph wheel to engage both gently and precisely with the principal movement. It is only when the mechanism is subjected to shock or impact that the vertical coupling reveals the full range of its extraordinary virtues, however: unlike the horizontal version, the vertical one suffers no momentary stoppage which would result in to unreliable timing.

A fool-proof technique.

The brilliance of the conception and realisation of the new Jaeger-LeCoultre chronograph movement leaves no room for doubt. It traces the passage of the hours insouciantly, without a care for what tomorrow may bring ? a privilege of the best among all human creations.


(Never before published photo of Calibre 752)

This new calibre combines durability and precision to an unprecedented degree. Today technology is opening up fields of enquiry and expertise to watchmakers that were unimaginable to their ancestors. One example of this concerns the winding mechanism: the new calibre?s ceramic ball bearings enjoy the precious advantage of needing no lubrication. This may seem a minor detail to the uninitiated, but when one is aware of the problems caused by the presence of lubricants over time, the value of such an innovation is by no means insignificant. The ceramic ball bearings thus make a significant contribution to the timepiece?s long-term reliability.

Another well-known source of difficulties has also been eliminated: the index. The regulation of the movement?s functioning is achieved in this new calibre by adjusting the inertia of the large balance by means of four adjustable screws on its felly. Not only is the watch?s accuracy thereby improved; in addition, its sensitivity to the impacts and shocks received as a matter of course in everyday life is reduced.

In the same way, the anchoring of the balance-spring has always represented a key ? and very delicate ? element in guaranteeing running efficiency. In the Manufacture?s new chronograph movement, the balance-spring is laser-welded at either end to the collet and the stud. The use of a laser makes it possible to prevent any damage to the metal in the course of the welding by reducing overheating. The gain in stability thus obtained is also accompanied by a gain in precision and by increased resistance, which prevents any damage to the balance-spring in case of shock.



A technical innovation: compression buttons.

One of the most distinctive features of these new models is the presence of two compression buttons, located respectively at two and four o?clock on the case. The Manufacture?s master-watchmakers are incapable of conceiving of a marvellous new solution to an age-old problem without immediately foreseeing that it might one day be superseded by an even more advanced one. This is precisely what has happened to the revolutionary compression key, which has now mutated into a compression button in order to provide greater security and reduce the risk of accident.


Master Compressor Extreme World Chronograph.

The Master Compressor Extreme World Chronograph turns to face the whole world. It displays the time in each of its time zones on a disc controlled by a two-pronged hand which completes a revolution every 24 hours.


(Master Compressor Extreme World Chronograph, Titanium movement case in Stainless Steel Housing)

While it is well known that shocks are the arch-enemies of precision in mechanical watches, fewer people are aware that equally detrimental effects on the mechanism?s functioning result from vibrations. Subtler but no less pernicious, these are difficult to prevent. However, the master-watchmakers and engineers of Jaeger-Le Coultre have just perfected a revolutionary device designed to prevent everyday vibrations and shocks from affecting the functioning of the mechanism. The Master Compressor Extreme World Chronograph is a beneficiary of this innovation. Its titanium case is laid on a two-part base composed of a shaft for the lower part and a bezel for the upper part which together keep the movement?s casing in place. Furthermore, the Manufacture?s engineers have provided them with a shock-absorbing system: this device absorbs the energy from the vibrations and shocks received by the glass and shaft and considerably lessens their effects on the running of the watch.

There?s no time for procrastination when you need to change straps. For the first time in the history of the Manufacture, the Master Compressor Extreme World Chronograph comes with two interchangeable straps, one of which is made of rubber. The provision of two straps might seem frivolous if it weren?t accompanied by an innovative device which makes instantaneous changeover possible: all you have to do is press a button in the back of the case and the pin is released. The fitting of the new strap is achieved rapidly and securely thanks to the provision of a pawl-and-ratchet mechanism. Appropriately in place of a folding clasp, the rubber strap is fastened by means of a buckle.

Master Compressor Chronograph.

In accordance with tradition in the Vall?e de Joux, the Manufacture has excelled itself in creating its first automatic chronograph movement.

(Master Compressor Chronograph, Stainless Steel case)


The design combines toughness with a characteristic dose of audacity. Legibility is a priority: to this end, the date appears in a trapezoidal window with the numerals moulded to its contours. Through a subtle interplay of contrasts, the watch?s face, hands, hour markers and numerals together compose a symphony in black, red and white.

Just like a slide rule, the tachometer is a marvellously precise instrument for measuring speeds. Free-fall enthusiasts might note that it determines speeds and estimates distances with singular ease.

In the Master Compressor Chronograph and Master Compressor Extreme World Chronograph, avant-garde symbols of progress, appearance and essence become one to. The watches? sober formal elegance allows the functions speak for themselves ? time, chronograph (hour and minute counters, central second hand), date, all driven by a self-winding mechanism of extraordinary technical accomplishment.


(Pink Gold Master Compressor Chronograph)

Master Compressor Extreme World Chronograph:
technical characteristics

Movement:
? mechanical automatic, Jaeger-LeCoultre Calibre 752,
crafted, assembled and decorated by hand
? 28,800 vibrations per hour (4 Hz)
? 72-hour power reserve
? 279 parts
? 41 jewels
? 5.6 mm high
? 22-carat gold oscillating weight segment

Functions:
? hours, minutes
? date indication
? power-reserve indication
? chronograph: hour and minute counter, centre second
? simultaneous indication of the 24 time-zones

Dial:
? titanium/stainless steel model: black
? titanium/platinum model: palladium grey
? luminescent numerals
? 8 luminescent hour-markers



Hands:
? local hour and minute: trapeze-shaped in rhodium-plated brass, openworked
? others: white or red-lacquered brass

Crown:
? 1 crown at 3 o?clock to start the watch and adjust the date.
Crown equipped with a compression key
? 1 crown at 10 o?clock to action the city flange
? 2 push-buttons at 2 o?clock and 4 o?clock for chronograph functions.
Push-buttons equipped with compression wing-nuts

Case:
? ? 46.3 mm in titanium/stainless steel and in titanium/platinum,
limited series of 200
? shock-absober
? 1000 Hours Control symbol on the case-back
? cambered sapphire crystal, hardness n?9
? system of interchangeable straps integrated with the case
? water-resistance at 100 metres


(Never before published photo of Calibre 752)

Straps:
? Matt alligator leather with double-stiched with folding clasp in stainless-steel or in 950 platinum
? and black rubber with stainless steel or 950 platinum buckle supplied with the watch


References:
titanium/stainless steel 176 84 70
titanium/platinum 176 64 40




Master Compressor Chronograph:
technical characteristics



Movement:
? mechanical automatic, Jaeger-LeCoultre Calibre 751,
crafted, assembled and decorated by hand
? 28,800 vibrations per hour (4 Hz)
? 72-hour power reserve
? 272 parts
? 41 jewels
? 5.6 mm high
? metal oscillating weight segment

Functions:
? hours, minutes, small second
? date
? chronograph: hour and minute counter, centre second
? tachometric scale on the inner bezel

Dial:
? stainless steel model: brilliant black
? 18-carat pink gold model: charcaol grey
? luminescent numerals
? 8 luminescent hour-markers


(Never before published photo of Calibre 752)

Hands:
? local hour and minute: trapeze-shaped in rhodium-plated brass, openworked
? others: white-lacquered brass

Crown:
? 1 crown at 3 o?clock to start the watch and adjust the date.
Crown equipped with a compression key
? 2 push-buttons at 2 o?clock and 4 o?clock for chronograph functions.
Push-buttons equipped with compression wing-nuts

Case:
? ? 41.5 mm in stainless steel and in 18-carat pink gold
? 1000 Hours Control seal on the case-back, in 18-carat gold
? cambered sapphire crystal, hardness n?9
? water-resistance at 100 metres

Straps:
? Stainless steel model: caramel coloured calfskin with double-stiched with folding clasp in stainless-steel
? 18-carat pink gold model: chocolate brown alligator with double-stiched with folding clasp in 18-carat pink gold

Bracelets :
? patented, 5-link, dual axis, in stainless steel or in 18-carat pink gold
? exclusive Jaeger-LeCoultre clasp with fats change system enabling fine adjustment over 2 x 4 mm
? also available from the Customer Service Department: rubber strap equipped with buckle

References:
Stainless steel/strap 1758470
Stainless steel/bracelet 1758170
18-carat pink gold/strap 1752440
18-carat pink gold/bracelet 1752140

Also to be released this year (Note, this photo has never been published publicly):

Master Compressor Chronograph Lady (note, Mecaquartz only)


To be continued

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