Friday, February 3, 2017

Frederique Constant – Worldtimer Manufacture Brown Dial

Frederique Constant – Classic Worldtimer Manufacture Brown Dial - New Version 2017

The New Elegant Classic Worldtimer Manufacture

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Geneva – Frederique Constant adds a new Worldtimer to the Classic Manufacture Collection, tracking time in twenty-four of the world’s most wonderful cities.


The man of today has become a true Citizen of the World and travelling has become as natural as running or reading. It is the “it” hobby of the moment! Frederique Constant has redesigned the Classic Worldtimer Manufacture and presents its latest version. A sophisticated new brown color pattern for the more classical man. Perfect for meeting get-a-ways or some downtime across the globe, allowing you to track time around the world with the greatest of ease.

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New design

Rose gold-plated stainless steel and brown patterns make the new Worldtimer, an elegant and sophisticated travelling watch. A dark brown design of the world map finely etched onto to the dial and the twenty-four cities on its outer rim make you wish for the next destination.

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The date by hand at 6 o’clock seamlessly combines with the Worldtimer function without disrupting the esthetic of the watch. And even though the dial is busy with information, indexes on each hour make reading the time an easy and simple task.


The watchmakers at Frederique Constant have accomplished an extraordinary feat with the Classic Worldtimer Manufacture, which not only embellishes the timepiece but also is key to the user. They were able to create an in-house developed, produced and assembled caliber holding 139 parts and measuring 30mm in diameter, where the Worldtimer function is completely controlled by the crown. Thus, no additional push buttons or correctors were added which is esthetically more pleasant and simpler to use. Frederique Constant is the first brand to ever introduce such complication achievement.

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The crown has three positions. The first lets the user manually wind the watch by turning the crown upwards; the second allows the user to set the date and city by turning the crown upwards and downwards, respectively; the third position allows the user to set the time by turning the crown downwards. This Worldtimer features two discs, one displaying 24h day-night indication and a second one listing the twenty-four cities. As a true Manufacture movement, this FC-718 caliber features Perlages and Côtes de Genève decoration, and this particular one holds a 42h power reserve.

Technical details

Model: Classic Worldtimer Manufacture

Reference: FC-718BRWM4H4  

Polished stainless steel 3-parts case
Diameter of 42mm
Convex sapphire crystal
See-through case back
Water-resistant to 5 ATM
Manufacture caliber FC-718  
Automatic with date and worldtime function adjustable through the crown
Perlage & Circular Côtes de Genève decoration on the movement
26 jewels, 42hours power reserve, 28’800 alt/h
Hours, minutes, seconds, date by hand, world timer function
Brown dial with world map in the center and luminous indexes
Hand-polished rose gold-plated hands
  • Date counter at 6 o’clock
  • 24h disc with day-night indication
  • City disc with 24 cities
Light brown leather strap with white stitches

----------------------------------------------------- - .Frederique.Constant

IWC – DA VINCI Perpetual Calendar Chronograph

IWC Schaffhausen DA VINCI Perpetual Calendar Chronograph


The Da Vinci Perpetual Calendar Chronograph is the brand’s first watch to combine the hour and minute counters with the moon phase in a single subdial. Achieving this called for a development of the IWC-manufactured 89630 calibre. A silver-plated or gold-plated disc depicts the full moon in all its glory. At the same time, the rounded, dark blue section of the disc – representing the earth’s shadow – rotates to show the waxing or waning moon. With white gold particles sprinkled across the dark blue background, the subdial has the appearance of a star-studded night sky.

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The Da Vinci Perpetual Calendar Chronograph (Ref. IW392101/IW392103) is the first model in IWC’s history to combine a chronograph from the 89000 calibre family with the perpetual calendar’s moon phase display in a subdial at “12 o’clock”. To achieve this, both the moon and the shadow of the earth are depicted on a single disc and rotate beneath an aperture in the lower part of the subdial.

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Together with the other three displays, this new function creates a harmonious unit on the dial of the 43-millimetre watch. The Da Vinci Perpetual Calendar Chronograph is available in two versions: 18-caratred gold and stainless steel.


Poor is the pupil who does not surpass his master, Leonardo da Vinci supposedly said to the man who taught him his craft. These words were also at the back of the minds of IWC’s engineers as they set about redeveloping the perpetual calendar created by IWC master watchmakerand inventor Kurt Klaus. While creating the 89630 calibre, IWC’s present-day master watchmakers constantly referred back to the old design blueprints that were their source of inspiration.

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But there was a significant challenge, as the moon phase in the IWC-manufactured 52610 calibre normally used for the perpetual calendar is located at “12 o’clock”. If the chronograph’s hour and minute counters were to be placed there, the hands would go straight through the centreof the moon phase disc. The 89360 chronograph calibre, on the other hand, had no room for a moon phase. As a result, the engineers designed the 89630 calibre, combining the dual counters of the chronograph with the moon phase mechanism and displaying them on a single subdial

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With its 43-millimetre case diameter and case height of 15.5 millimetres, the design of the Da Vinci Perpetual Calendar Chronograph is impressive yet carefully balanced. The crown and the two push-buttons are cylindrical and no longer as round as those of the Da Vinci Perpetual Calendarof 1985. Combined with the large lugs of the moving horns, they create an impression of overall harmony. Despite the many displays, the dial remains clear and uncluttered because the designers chose dark blue as the colour for the chronograph moon phase totalizer at “12 o’clock”. This firmly distinguishes it from the dial and three subdials of the red gold version (Ref. IW392101) and the stainless-steel model (Ref. IW392103), which are silver-plated and slate-coloured, respectively.

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In the red gold model, the case, horns, crown and push-buttons are all made of solid 18-carat red gold. A gold folding clasp holds the dark brown alligator leather strap by Santoni. In the stainless-steel version with its black alligator leather strap, the slate-coloured counters are equipped with rhodium-plated facets that once again emphasize the circle as an important design element. A glance through the transparent sapphire-glass back cover reveals the sophisticated design of the movement, which has blued screws, a red gold rotor and various types of decorative polishing on the bridges. The IWC-manufactured 89630 chronograph calibre with an automatic double-pawl winding system features a 68-hour power reserve.

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For the chronograph, the designers likewise made no concessions. The hour and minute counters are combined in a totalizer at “12 o’clock”, which enables stopped times to be read off as if they were the time of day. This is a significantly more elegant form of aggregate timing than two separate counters. The blue central chronograph hand shows stopped times to an accuracy of one-eighth of a second. The chronograph has two push-buttons,which are used to start, stop and reset the hands, as well as for the flyback function. The movement itself is designed in such a way that the stopwatch can run continuously without diminishing the 68-hour power reserve.

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The perpetual calendar works with the utmost precision: in 577.5 years, the display will diverge by just one day from the moon’s actual course. The perpetual calendar displays the date, month and day of the week on three subdials of the same colour at “3”, “6” and “9 o’clock”, respectively.

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A small window in the bottom left-hand section of the dial reveals the four-digit year display. Mechanically programmed, the calendar takes into account the different length of the months and even the leap years. Nevertheless, every 100 years (2100, 2200, etc.) a leap day normally due is omitted, which means that a watchmaker will have to advance the calendar manually on 1 March. In 2300, another intervention will be necessary when the current century slide with the figures 20, 21 and 22 will need to be replaced with a new one for the years 2300 to 2599.

Technical details

Model: DA VINCI Perpetual Calendar Chronograph

Gold · IW392101 
Steel · IW392103

Mechanical chronograph movement – Perpetual calendar with displays for the date, day, month, four-digit year and perpetual moon phase – Stopwatch function with hours, minutes and seconds – Hour and minute counters combined in a single counter at “12 o’clock” – Flyback function – Small hacking seconds – Glucydur®* beryllium alloy indexless balance with high-precision adjustment screws on balance rim – 18-carat red gold rotor – See-through sapphire-glass back

IWC-manufactured calibre 89630

Frequency 28,800 A/h | 4 Hz
Jewels 51
Power reserve 68 h
Winding Automatic

  • 18K Red gold 
  • Stainless-steel
Ref. IW392101: 18-carat red gold case, silver-plated dial.
Ref. IW392103: Stainless-steel case, slate-coloured dial.
Diameter 43 mm
Height 15.5 mm
Glass Sapphire, arched edge, antireflective coating on both sides
Water-resistant 3 bar
Dark brown alligator leather strap by Santoni, 18-carat red gold folding clasp
Black alligator leather strap by Santoni, stainless-steel folding clasp

* IWC Schaffhausen is not the owner of the Glucydur® trademark.

Clemens von Walzel
Department Manager Public Relations
+41 (0)79 173 27 58
Press releases - 2017
 IWC Schaffhausen
Baumgartenstrasse 15 ·
CH-8201 Schaffhausen
Phone +41 (0)52 235 75 65 ·
Fax +41 (0)52 235 75 01 ·
Mobile  +41 (0)79 957 72 52
---------------------------------------------- - IWC Watches