Saturday, February 28, 2015

GREUBEL FORSEY – Quantieme Perpetuel a Equation Tourbillon 24 Secondes


GREUBEL FORSEYQuantième Perpétuel à Équation Tourbillon 24 Secondes NEW


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Greubel Forsey has pushed beyond the previous limits of watchmaking, with no fewer than six major inventions, and a focus on ground-breaking inclined tourbillons.

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Now it’s time to reinvent the horological complication in the original sense of the term, and to show that in this area as well, watchmaking is in a perpetual state of evolution.

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The technically and ergonomically innovative Double Balancier 35° and GMT provided the springboard for this new take on the time-honoured perpetual calendar.

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ÉQUATION in white gold measures 43.5mm in diameter and is 16mm high. It includes a fourth patentthe 24-second Tourbillon inclined at 25°,.



The balance oscillates at 21,600v/h and the power reserve is 72 hours from two fast-rotation superimposed barrels that feature protection against excess tension. This leaves space for a large free-sprung balance.

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The movement diameter is 37mm (16.41 lignes), height 9.55mm and comprises 570 components and 65 jewels.

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Technical Specifications 

Quantième Perpétuel à Équation Tourbillon in white gold
Big directional Perpetual calendar, Equation of Time Tourbillon 24 Seconds
Hours, minutes, small seconds - indicator of power reserve
Day, date, month, calendar year, a leap year indicator, day / night (24h with red zone)
Selection function - equation of time - indicating the months, seasons, solstices and equinoxes

 Mouvement 
Dimensions of the movement:
    
Diameter: 36.40 mm
    
Thickness: 9.60 mm 

Number of components:
    
Full motion 570 components
    
Tourbillon carriage 86 components
    
Weight of the cage: 0.37 g 

Number of jewels: 65
    
Ruby mid-ice in gold chatonsChronometer 

Power reserve: 72 hours 
Barrel:
    
Two coaxial barrels in Rapid rotating (1 turn in 3.2 hours), equipped with a slipping spring to avoid surges 

Balance:
    
A manipulated variable inertia with gold screws (diameter 10 mm) 

Frequency: 21,600 vibrations / hour 
Spiral:
    
Phillips terminal curve
    
Piton de Genève 

Turntables: Nickel silver, grained, polished bevelling, pearl 
Bridges:
    
Grained nickel silver and beaded, nickel-palladium treatment, polished bevelling
    
4 pads in gold, engraved, one with the Individual number.
    
Polished steel tourbillon bridge
    
Mobile encoder sapphire bridges 

Tourbillon cage:
    
Inclined at 25 °, one rotation in 24 seconds
    
Cage pillars Avional
    
Titanium bridges
    
Gold balance weight 

Workings:
    
Involute profile
    
Tangential inclined gear with profiled teeth on fixed wheel and escape pinion 

Dial side views:
    
Hours and minutes
    
Small second
    
Sectoral indicator of 72-hour power reserve
    
Indicator of the day, date, month
    
Indicator leap years
    
Day / night (with 24 red zone)
    
Indicator function selection 

Bottom side views:
   
Year indicator by discs.
    
Equation of time with indications of the seasons, solstices and equinoxes 

Dressing Housing:
    
White gold with asymmetrical convex sapphire crystal
    
Transparent back with sapphire asymmetrical flat ice
    
Polished bezel and satin-finished by hand breadth
    
Horned geometry in three dimensions
    
Carvings in relief, polished "QP to EQUATION" and "GREUBEL FORSEY" amid hand-hammered
    
Individual number engraved by hand on the bottom
    
Gold security screws 

Case dimensions:
    
Diameter: 43.50 mm
    
Height: 16.00 mmSealing of housing:
    
Waterproof 3 ATM - 30 m - 100 ft (NIHS 92-20 / SN ISO 22810: 2010) 

Push out crown:
    
White gold with GF logo engraved and black lacquered 

Dial:  Dial multilevel gold 
Hands:
    
Hours and minutes in polished gold with SuperLumiNova
    
Small second polished gold
    
Power reserve polished gold
    
Needle leap years polished blackened steel 

Strap and buckle:
    
Black alligator, hand-stitched
    
Clasp in white gold, Greubel Forsey logo engraved by hand


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For further information: 
Communication Department 
press@greubelforsey.com – +41 79 194 2884
Eplatures-Grise -16 P.O. Box 670 2301
La Chaux-de-Fonds- Switzerland
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Friday, February 27, 2015

Jaeger-LeCoultre – Master Compressor Extreme LAB 2

















Jaeger-LeCoultre Master Compressor Extreme LAB 2 Titanium  NEW

Master Compressor Extreme LAB 2
Concerted inventiveness

A new chronograph joins the line of Master Compressor Extreme LAB watches,  a  collection  distinguished  by  precise  and  reliable  time measurement. The Master Compressor Extreme LAB 2 embodies a combination of scientific materials, cutting-edge materials and horological research. Better still, the master artisans of Jaeger-LeCoultre have breathed into it their passion for pushing ever further the limits of the world around us.

The Manufacture systematically applies a fundamental principle to all its creations: however complex an automatic watch, it makes no compromises when it comes to functionality and pragmatism. This new model thus combines extremely sophisticated ergonomics with the precision and reliability that are a must at Jaeger-LeCoultre. The Master Compressor Extreme LAB 2 features a crown-integrated function selector that handles especially smoothly, a patented digital counter to indicate the chronograph jumping seconds, a manual stop seconds device, a radial power-reserve indication and a GMT function enabling at-a-glance readings. Its movement is housed in a sturdy case made of a light and resistant TiVan15 titanium alloy. It is fitted with a high-tech ultra scratch-resistant ceramic bezel. Pushpieces specially designed to ensure optimal user friendless provide a broad surface coated with rubber grooves and serve as a crown guard. A fast strap-change system is incorporated into the caseback and the new double pin buckle provides unprecedented length adjustment ensuring a perfect fit on the wrist.

























The Master Compressor Extreme LAB 2 is designed to be a reliable and easily manoeuverable companion. The watchmakers of the Manufacture have succeeded in simplifying its handling while guaranteeing precision and reliability. To ensure access to the various watch functions whatever the conditions of wear, they have developed a function selector and an independent stop-seconds mechanism.

The function selector
Activated by means of a crown-integrated pushpiece, the function selector serves to adjust all functions without involving the inevitably delicate operation of pulling out the crown. Once the function is selected, the adjustment can be made by simply turning the crown. When the latter is in “neutral” position, the crown serves to wind the barrels. One press takes the user to the position required to adjust the dual time-zone display as well as the date. Another press switches the crown to main time-zone adjustment mode. And a final press brings the system back to its initial position.  
This system does away with the need to pull out the crown and thus ensures peerless water resistance without needing to resort to the traditional compression key.

Stop seconds device
In the time-setting position, the seconds hand continues running and the precision of the watch rating is thus not impaired. To ensure perfect synchronisation with a time signal, the user simply operates the slide located on the left side of the case. Simultaneously sliding and pressing it stops the seconds hand, which will continue running again when the slide is released. This handling in two phases – sliding and pressing  – serves to avoid any accidental handling.

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Functionality and endurance, the essential attributes of the Extreme LAB 2 
Power reserve
The functions of a wristwatch depend on the force transmitted to the movement. The barrel of the Master Compressor Extreme LAB 2 guarantees a constant supply of energy for 60 hours. To consult the level of energy available at any given time, a new patented radial display providing simple and intuitive readability is arranged around the rim of the upper dial section. As the power reserve is gradually depleted, the various segments on the semi-circular indication turn from white to blue. This generously sized and unique display mode facilitates an instant check of the level of the barrel’s degree of winding, even in poor light.

Inventive pushpiece construction
The two traditional pushpieces are covered and protected by two L-shaped metal levers that pivot around the crown. They provide a broad contact area while protecting the crown and its integrated function selector. The upper surface of the pushpiece is coated with rubber grooves to ensure a non-slip grip.

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Dual time zone
The Master Compressor Extreme LAB has a GMT function. The second time zone, which displays the time in the owner’s usual place of residence, is shown by a second central hours hand, complete with a 24-hour display at 6 o’clock. The time zone is adjusted via a crown-integrated function selector and also drives the date in both forwards or backwards directions. This new model is powered by Jaeger-LeCoultre Calibre 780, featuring a column-wheel-controlled chronograph. Precision starting and stopping of the time measurement is ensured by a vertical coupling-clutch. The large balance with its 11.5 mg.cm 2 moment of inertia beats at a cadence of 28,800 vibrations per hour and its amplitudes vary only marginally when sustaining shocks. It is fitted with variable-inertia adjustment screws. The absence of the index generally used to adjust the frequency of the balance eliminates the risk of a change in position if subjected to a violent shock. The balance-spring stud- holder is held by two screws which, once put in place, are secured definitively. The balance-spring itself is fitted with a specific protective device that restricts its oscillation in case of shocks. The balance-cock is held by two pinning points in order to enhance its resistance.

When it comes to endurance, the automatic rotor, which is mounted on ceramic ball bearings that require no lubricant, winds the barrel of the watch so as to ensure a 60-hour power reserve. All movement components are meticulously decorated.

Strap system
The inventively designed new integrated interchangeable strap system is operated by means of a lever on the caseback. Rotating it releases the strap attachment and enables a smooth and easy change. The double alligator strap guarantees maximum durability and comfort, while the secure double pin buckle ensures precise two-position adjustment between each notch.

Digital chronograph minutes counter
In order to guarantee optimal at-a-glance readability the watchmakers of the Manufacture have designed a display enabling instant read-off. A large double- digit counter ideally situated at 12 o’clock indicates the chronograph minutes.

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 Its operation is based on an instant-jump mechanism activated at the exact moment when the seconds hand completes one full turn. The chronograph hours totaliser is located at 9 o’clock, coaxially with the movement seconds.

A powerful design for optimised use
The black ceramic bezel of the Extreme LAB 2 offers superior protection, as does the scratch-resistant sapphire crystal. The crown, also made of ceramic, echoes the particularly elegant bezel with its polished and satin-brushed finish. For the case middle, the engineers of the Manufacture have chosen a two-part construction on which an\ external brancard (carrier or shaft) serves as a strap attachment and a base for the inner case housing the movement. This system combines robustness and lightness thanks to TiVan15, a titanium and vanadium alloy providing 15% greater traction resistance than traditional titanium alloys.
The substantially openworked dial serves to observe the details of the calibre structure through the sapphire crystal. The black or ruthenium coating of various movement components creates a striking contrast with the numerals and hands in order to give the chronograph maximum readability. High-tech materials, daring shapes combined with the double-ringed case structure, add to the aesthetic intensity of this chronograph. It alternates between blue and white colour codes, particularly on the chronograph hours counters, permeated by a resolutely graphic spirit and driven by a concern for legibility. While its appearance is undeniably complex, the Master Compressor Extreme LAB 2 is easily tamed by the person who has chosen to adopt it.
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TECHNICAL CHARACTERISTICS

Model: Master Compressor Extreme LAB 2

Reference: Q203T541, TiVan 15, new model
All References
Q2032540, 18-carat pink gold
Q203T540, TiVan 15

Movement
Jaeger-LeCoultre 780 Calibres
Mechanical  automatic  movements developed and  produced by the Manufacture Jaeger-LeCoultre
• 569 parts for Calibre 780
• Chronograph with large double-digit minutes counter
• Crown selector and function indicator
• Main time-zone adjustable in one-hour increments
• Second time-zone (hour and 24-hour indication)
• 180° radial 60-hour power-reserve display
• Small seconds (movement operating indicator)
• Independent stop seconds device
• Nickel silver ebauche
• Diameter: 33.8 mm. Thickness: 9.08 mm
Chronograph
• Large twin-disc 60-minute digital minutes counter with built-in locking
system
• Eight-of-a-second seconds counter
• 24-hour display
• Column wheel
• Vertical coupling-clutch
• Rubber-clad pushpieces and pushpiece guards
Function selector
• Ceramic crown with integrated function selector pushpiece
• Column wheel-type selection system
• Three-position indicator: 1. Winding, 2. Date and dual-time adjustment, 3.
Time-setting
Escapement
• 28,800 vibrations per hour
• Large variable-inertia balance (11.5 mg·cm 2 )
• Balance with two pinning points with stud-holder locking plate
Automatic winding
• Oscillating weight mounted on ceramic ball bearings, lubricant-free
• Unidirectional winding
• Three-spoke oscillating weight and platinum segment
Case
• 143 parts
• Double-ringed case
• Spring-secured ceramic bezel
• Secure and ergonomic chronograph pushpieces
• Sapphire crystal (caseback and dial) 
 Materials, two versions:
o TiVan15 (material exclusive to Jaeger-LeCoultre).Ceramic bezel and crown, rubber-clad pushpiece guards.
o 18-carat pink gold and TiVan15 (material exclusive to Jaeger-LeCoultre).Ceramic bezel and crown, rubber-clad pushpiece guards
• Diameter 46.8 mm. Thickness: 16.5 mm
Dial and hands
• Openworked dial, black PVD-coated bridges
• Raised function display
• Luminescent hour-markers
• New shape of openworked hands
Watches tested for 1000 hours
Strap and buckle
• Lever-operated strap interchangeability system
• Strap held to 2 attachment points, triple-notch fine adjustment
• Secure double pin buckle with double-notch fine adjustment, built-in interchangeability system
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Press release
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Thursday, February 26, 2015

JUNGHANS – Meister Collection



JUNGANS Meister Collection NEW

Fascinating colours

In 2015 Junghans presents the models of its successful Meister range in new shades. A classic colour scheme underscores the masterful character of the timepieces and is found throughout the collection, which is a delight at any time.

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The blue hour

This brief and fascinating moment can only be observed in a short frame of time during sunrise and sunst, lending the moment a particular effect with its deep-blue colour.

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Meister Handaufzug


It is this special atmosphere that the dial of the Meister Handaufzug (hand-winding) and Meister Chronoscope capture: presented in a blue sheen, it ensures a special aesthetic effect.

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Max Bill Chronoscope & Automatic Linie


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 Meister Chronoscope

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The cognac-coloured leather strap skilfully accentuates the hue of the dial. A cool combination of the blue hour is achieved via the interaction of the deep-blue dial with a sporty stainless steel bracelet.

Skilfully presented

The Meister Agenda guarantees its wearer a masterful appearance at all times. It enables the precise planning of activities, as it displays the calendar week and is the perfect companion in your day-to-day life.

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Meister Agenda

Its face is characterised by eye-catching visual features: the calendar week and power reserve have their bowl-shaped place on the dial.

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Meister Agenda

The symmetry is rounded off by the even well-adjusted positioning of the weekday and date display. The functions on the graphite-grey dial are radiant in silver, thereby setting a fine contrast.

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Graceful highlights

2015 sees the ladies' models of the Meister collection present themselves in fine attire for your evening events. Characterised by gentle yet distinctive colour tones, they represent perfect colour harmony.

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With their white-polished blue or grey dials, the timepieces are a feminine interpretation of the historic archetype. Graceful Roman numerals and diamond appliqué ensure a glittering presence on the wrist – and make the Meister Ladies a true gem.

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Magical attraction

When the sun sinks lower and night falls, the heavenly bodies have exercised an unbroken fascination on people since the beginning of time. The moon, in particular, acquires a particular significance through its beauty.

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One feature of the Meister Kalendar is the moon phase display, which is perfected in the in- house printing facility, finely co-ordinated with the hue of the case, with the luminary exclusively accentuated.

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 Meister Kalendar

The indices and hands appear simple and elegant in the pink gold-coloured case, the graphite-grey dial lending a unique shimmer.

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Meister Classic

The most classic of the Meister watches, the Meister Classic, also incorporates this colour dialogue, acquiring a new, graceful facet in the process.

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Meister Chronometer limitiert

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Junghans – the German watch

For more than 150 years, the Junghans brand has stood for quality, reliability and passion. Based in Schramberg, Germany, the long-established, independent company designs and manufactures watches that set new standards and are held in high regard around the world. Having close ties to the company’s location and being committed to the values that Junghans embodies, the owners work hard to maintain traditions and to move purposefully forward to a successful future. Tradition and an unswerving spirit of innovation are also reflected in the design and engineering of the company’s watches. In this regard the spectrum embraces all current watchmaking technologies: from classic mechanical watches and quartz technology all the way to the company’s own radio-controlled and solar technology. With innovative products ‘Made in Germany’ and an international outlook, Junghans will continue in future to further develop the unique success story of the watch with the star.

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Junghans press office c/o Convensis Group
Junghans press team
Saskia Bodemer-Stachelski
Evelyn Großmann
Filippo Corsani
Friedrichstra ße 23b
D-70174 Stuttgart
Tel. +49 711 / 36 53 37 74
Fax +49 711 / 36 53 37 89
PRjunghans@convensis.com
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Wednesday, February 25, 2015

Dewitt – ACADEMIA Grand Tourbillon


DeWittACADEMIA Grand Tourbillon Blue and Green Limited Edition NEW

DeWitt is unveiling its latest technical innovation, the Academia
Grand Tourbillon watch, a limited edition of 99 pieces, entirely
conceived and assembled at the DeWitt Manufacture by its own
master watchmakers.

This new Academia creation houses the calibre DW 8030, developed from the DW 8028 movement, the Manufacture's first 100% in-house manually-wound tourbillon movement, first presented in 2010. Built out of 327 component parts, this calibre is structured along traditional lines and incorporates numerous tried and tested technical features: 18,000 vph, a 65-hour power reserve, a Swiss lever escapement and a Straumann balance-spring with Phillips curve sequenced at 2.5 Hz.

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For its part, the time display in the form of a jumping hour and minute indication reflects DeWitt's unique creativity and ground-breaking approach, far removed from the codes of conventional watchmaking. For the setting of the hours, a rack mechanism is activated to give added mobility to the watch's dial. As each minute passes, a slip-spring moves into place, drawing the observer's eyes once again to the depths of this sophisticated mechanism.

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The dial is made up of a silvered grid linked to the watch's movement that recalls the inner workings of industrial machinery at the beginning of the 20th century. The date is displayed in a rose gold colour tone in a window at 3 o'clock and is adjustable by a corrector situated on the side of the case.

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Equipped with a circular 46 mm rose gold case adorned with the famous imperial columns, the Academia Grand Tourbillon watch is one of DeWitt's most emblematic timepieces.

On the reverse side of the watch the sapphire case back reveals a day and night indicator, which takes on a blue colour tone to indicate night-time and a white colour tone to indicate day-time hours.

Like every DeWitt tourbillon, the Academia Grand Tourbillon watch bears the signature of the watchmaker who assembled the timepiece, inscribed on the decorative silvered grid located on the back of the movement. In order to ensure perfect quality, DeWitt makes it a point of honour that each grand complication movement should be assembled, set and tested by the same master watchmaker.

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Last but not least, the Academia Grand Tourbillon watch fully complies with the extremely demanding finishing norms established by the DeWitt Manufacture. Crafted exclusively by hand, this model features finishes of rare quality that can be observed by looking at its sapphire case back. The barrel bridge is sandblasted with a "Black Gold" treatment, the balance has a rose gold colour tone and the carriage bar is satin-finished and rhodium-plated.

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The crown and the buckle are each crafted in 18-carat rose gold and adorned with the brand's "W" signature initial. With its flawless movement and powerful allure, the Adademia Grand Tourbillon watch combines the very best of traditional craftsmanship with the technical and aesthetic innovation that is characteristic of all watch designs by Jérôme de Witt.
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TECHNICAL SPECIFICATIONS

Model: ACADEMIA Grand Tourbillon Limited Edition: 99 pieces

Reference : AC.GT.002
Reference : AC.GT.003

Movement
Calibre: Ref DW8030
Mechanical manually-wound movement incorporating a DeWitt Manufacture tourbillon
Diameter: 37 mm
Vibrations: 18,000 vph
Balance: Variable-inertia balance
Spiral: Spiral Straumann® with Phillips curve sequenced at 2.5 Hz.
Escapement: 44° angle of lift
Jewels: 32
Number of components: 327
Functions
Jumping hours at 9 o’clock, jumping minutes at 12 hours,
disc date with corrector at 8 o’clock, day/night display
Case
Round case with 24 Dewitt imperial columns on sides
Material: 18-carat rose gold
Diameter: 46 mm
Total thickness: 11.9 mm
Crown: 18-carat rose gold, polished, ring in blackened titanium, “W” signature
Case back: Open back, sapphire crystal with safety screws
Distance between lugs: 23 mm
Dial
AC.GT.002
Green lacquer with silvered grid and circles, minute counter with black rail track, 
 
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Hour counter with Roman numerals and indices in rose gold colour tone,
date display in rose gold colour tone
Hands: Hours and minutes: open-work hands in the form of double-edged swords
Limited Edition: 99 Pieces

AC.GT.003
Blue lacquer with silvered grid and circles, minute counter with black railtrack,

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Hour counter with Roman numerals and indices in rose gold colour tone,
date display in rose gold colour tone
Hands: Hours and minutes: open-work hands in the form of double-edged swords
Limited Edition: 99 Pieces

Water-resistance: 30 metres
Wristband
Black, Blue Alligator leather
Buckle: Triple folding clasp, polished 18-carat rose gold cover with “W” signature
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Rue du Pré-de-la-Fontaine 2,
1217 Meyrin, GENEVA,
SWITZERLAND +41 22 750 97 97 info@dewitt.ch
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www.DeWitt.ch

Tuesday, February 24, 2015

IWC – PORTUGIESER PC Digital Date-Month 75th Anniversary















IWC Schaffhausen PORTUGUESER Perpetual Calendar Digital Date-Month 75th Anniversary Limited Edition NEW


In 2015, the large digital date and month display becomes a dominant feature of the IWC Portugieser watch family. Limited to just 25 watches in platinum and 75 in each of the red gold editions, the new Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary” is equipped with a wealth of sophisticated complications that are available in this combination only from IWC Schaffhausen.

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The digital perpetual calendar is one of the outstanding technological advances made by the Schaffhausen-based watchmaking company. With the new Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary” (Ref. 3972), the Portugieser watch family now includes a model featuring a digital display for the date and month. This exclusive timepiece packs a wealth of IWC watchmaking expertise into its 45-millimetre case: perpetual calendar, large digital date, leap year display, chronograph with flyback function and the IWC-manufactured 89801 calibre with its quick-action switch and efficient double-pawl winding mechanism.

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On the occasion of its relaunch to mark the 75th anniversary of the Portugieser family, the watch is fitted with an arched-edge front glass and Santoni alligator leather strap and has an attractive new calibre design. The watch is limited to 25 pieces in platinum and 75 pieces each in 18-carat red gold with either a black or silver-plated dial.

CHANGING WAYS OF SEEING THINGS IN THE COURSE OF TIME

The Portugieser Perpetual Calendar Digital Date-Month Edition “75th Anniversary” makes allowances for the different ways of seeing things that have developed over the centuries: the dial combines two striking, highly legible analogue displays (time and chronograph) with three digital ones (date, month and leap year). Today, most people prefer to read the time with the help of hands but are happy if the date is shown in figures. This was not always so, as can be demonstrated by the example of the time of day. In 1884, IWC unveiled its first Pallweber-style pocket watches with a jumping digital display showing the hours and minutes. The watches were an enormous hit, but then, after just 3 years, the craze was over.

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When digital time displays were embraced on a massive scale with the quartz watches of the 1970s, the watchmakers in Schaffhausen stuck to their guns and continued to use hour and minute hands. And for a good reason: on a digital display, the abstract information contained, for instance, in “11:45” first needs to be mentally processed, whereas the spatial arrangement of the hands on an analogue watch is understood quickly and intuitively. It is, simply, “quarter to twelve”.

DISPLAYING STOP TIMES IS UNCANNILY SIMPLE

Just how intensively the designers in Schaffhausen have thought about our habitual ways of seeing things can be seen from the chronograph display on the Portugieser Perpetual Calendar Digital Date-Month “75th Anniversary”. While considering whether there was a way to make the figures in the various subdials of a conventional chronograph easier to process, they hit on the idea of displaying the stopped hours and minutes in a totalizer – just like the time of day. The stopped seconds continued to be shown by the central seconds hand. From a design point of view this may seem ingeniously simple, but technically speaking it is very difficult to implement.

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To turn the “watch-within-a-watch” concept into reality, a team at IWC worked for 4 years on the in-house 89360-calibre chronograph movement with its particularly efficient double-pawl winding mechanism. In this assembly, four pawls arranged diagonally to the pawl wheel – in other words two sets of double-pawls – convey the push-and-pull motion from the rotor to the barrel. This solution eliminates dead spots during winding and boosts the system’s efficiency by a significant 30 percent.

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 The further-developed in-house 89801 calibre is now used in the Reference 3972. Like its predecessor, it features an integrated flyback function that enables the user to reset the running stopwatch hands to zero simply by pushing the button, and to start another timing sequence immediately.

AN ENTIRE DIAL SET IN MOTION

It is said that some proud owners of an IWC timepiece equipped with the Perpetual Calendar Digital Date-Month movement put the complex mechanics of their watches to the test on New Year’s Eve by starting the chronograph just before midnight. Precisely at the moment that the new year begins the entire dial is set in motion: six hands advance slowly while two large display discs and a smaller one also move forward with a distinctive and (due to the commotion caused by celebrations) barely perceptible click. Despite this tour de force of precision mechanics, the interplay between the complications does not affect the precision of the movement, even if there is hardly any more tension in the spring.

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Where does the IWC manufactured 89801 calibre get all this power? The secret is a second source of energy, the so-called quick-action switch. Every night, when the date display moves forward, the switch siphons off a little of the energy, stores it and then discharges it precisely at the end of the month or year when, in addition to the date and month disc, the leap year disc also needs to be advanced. The perpetual calendar can be set easily using the crown. It will not require correction until 2100, a year that breaks with the conventional 4-year cycle and will not be a leap year.

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The see-through sapphire-glass back provides a view of the meticulously finished movement consisting of 474 individual parts. Following further development, the IWC-manufactured 89801 calibre now has a number of new features: the rotor and the inset “Probus Scafusia” medallion are now slightly more delicate in design and made of solid red gold. Other new highlights include the decorative blued screws, which together with the red jewels and the Geneva stripes on the plate constitute an attractive ensemble.

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Technical Specifications

 Model: PORTUGUESE Edition Perpetual Calendar Digital Date-Month 75th Anniversary
 

Reference: IW397201  Limited Edition to 25 case in platinum, silver-plated dial watches
Reference: IW397202  Limited Edition to 75 case in 18-carat red gold, black dial watches
Reference: IW397203  Limited Edition to 75 case in 18-carat red gold, silver-plated dial watches

FEATURES
Mechanical chronograph movement
Self-winding – IWC-manufactured 89801 calibre (89000-calibrefamily)
Perpetual calendar – Large, double-digit displays for the day and monthn Leap year display
Stopwatch function with hours, minutes and seconds
Hour and minute counters combined in a totalizer at 12 o’clock
Flyback function – Small hacking seconds
See-through sapphire-glass back – Rotor made of 18-carat red gold
    Limited Edition to 25 watches
MOVEMENT
    Calibre: 89801
    Frequency: 28,800 A/h / 4 Hz
    Jewels: 51
    Power reserve: 68 h
    Winding: automatic
WATCH
Materials:
  • Ref. IW397201: case in platinum, silver-plated dial, black
alligator leather strap by Santoni, folding clasp in platinum
  • Ref. IW397202: case in 18-carat red gold, black dial, dark brown
alligator leather strap by Santoni, folding clasp in 18-carat red gold
  • Ref. IW397203: case in 18-carat red gold, silver-plated dial, dark brown
alligator leather strap by Santoni, folding clasp in 18-carat red gold 
Glass: sapphire, arched edge, antireflective coating on both sides
Crown: screw-in
Water-resistant: 3 bar
Diameter: 45 mm
Case height: 16,5 mm

* IWC Schaffhausen is not the owner of the Super-LumiNova® trademark.
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 IWC Schaffhausen
Uwe Liebminger
Department Manager Public Relations
Mobile  +41 (0)79 957 72 52
E-mail  uwe.liebminger@iwc.com
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