Pierre DeRoche's new declaration of love for horological complications
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"When I was a kid," recalls the co-founder of Pierre DeRoche, Carole Dubois, "my grandfather taught me that to remember the months with 30 and 31 days, I only had to look at the troughs and ridges on the backs of my hands. It was from this simple answer to a complex question that the idea for the GrandCliff Annual Calendar was born, to round off the brand's collection".
In 1980, a brand no longer in existence presented what was probably the 1st annual calendar in wristwatch form. This fine feat was also the fruit of work by Dubois Dépraz. Forty years later, the complications specialist from the Joux Valley and Pierre DeRoche have pooled their know-how to revisit this subtle horological complication, with added refinement. The sobriety of the gentlemen's version and the delicacy of the ladies’ version round off the GrandCliff collection perfectly, and reinforce Pierre DeRoche’s positioning as a horological complication specialist.
Ranked among the so-called useful or practical complications, the annual calendar is one of the iconic sophistications of watchmaking. It is also one that introduces a touch magic simplifying everyday life. By developing in parallel its gentlemen's and ladies' versions of the complication, Pierre DeRoche set out to restore its full prestige.
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The days that count, by Pierre DeRoche
Recognised for its innovative creations in modular designs, particularly the now famous Royal Retro movement with its six retrograde seconds hands, Pierre DeRoche quite naturally turned its attention to the Calendar, one of the iconic complications of watchmaking know-how.
The three watchmaking calendars
An ingenious mechanism, the calendar adds to the time display on timepieces a calendar day reading, available in three different degrees of sophistication.
A simple calendar requires correction five times a year, for every month with fewer than 31 days. The more refined annual calendar correctly displays the date 364 days out of 365, only requiring correction when the date changes to 1st March. Finally, regarded as a watchmaking masterpiece, the perpetual calendar manages the date correctly all year round, including leap years.
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By opting for a 32 mm mechanism, which allows for a large-diameter date disc, Pierre DeRoche offers a particularly generous date display to guarantee optimal readability of the annual calendar.
GrandCliff Annual Calendar, the elegance of the essential
The newest member of the GrandCliff family, the new Pierre DeRoche Annual Calendar rounds off the collection inaugurated in 2005.
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Featuring applique silver indices, the shaded black dial with velvety background highlights the annual calendar complication superbly. A generously-sized date window at 3 o’clock, plus a month indicator at 7 o'clock by means of a coloured red disc under the dial.
Enhanced with grey stitching, the Cordura-look leather strap gives the GrandCliff Annual Calendar a final touch of the elegance of a classic and contemporary timepiece.
GrandCliff Milady Annual Calendar, an assertion of watchmaking femininity
In dreaming up the feminine version of its Annual Calendar, Pierre DeRoche wanted to offer watch lovers a rare occasion to demonstrate their taste for mechanical subtleties, while proudly asserting their femininity.
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Featuring a diamond-set bezel, the finely wrought silver-plated dial bears a sunray decoration at 3 o’clock, complemented by a date window with black writing on a white background.
The month indicator at 7 o'clock uses a counter with heart-shaped cut-outs. The displays are read via a burgundy-coloured disc to match the leather strap, plus the seconds hand.
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TECHNICAL DATA
Collection GRANDCLIFF
Model: GRANDCLIFF ANNUAL CALENDAR
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ANNUAL CALENDAR WITH DATE AND MONTH INDICATORS
MOVEMENT
Mechanical automatic, Dubois Dépraz calibre 6501, 21 jewels.
Nickel silver rotor on ball-bearing mechanism, cut-out and engraved.
FUNCTIONS
Hours, minutes, seconds.
Annual calendar with date and month indicators
CASE
Steel polished and satin-finished.
41 mm diameter.
CRYSTAL Anti-reflective sapphire crystal and sapphire back.
DIAL
Black shading.
Applique hour-markers.
WINDING CROWN
Screw-lock winding-crown with the Pierre DeRoche logo.
WATER-RESISTANCE Water-resistant to 50 m.
STRAP
Black Cordura-look leather with steel folding clasp.
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TECHNICAL DATA
Model: GRANDCLIFF MILADY ANNUAL CALENDAR
Click, to see the large size. ▶ BIG FOTO 
ANNUAL CALENDAR WITH DATE AND MONTH INDICATORS
MOVEMENT
Mechanical automatic, Dubois Dépraz calibre 6501, 21 jewels.
Nickel silver rotor on ball-bearing mechanism, cut-out and engraved.
FUNCTIONS
Hours, minutes, seconds.
Annual calendar with date and month indicators
CASE
Hours, minutes, seconds.
Annual calendar with date and month indicators
CASE
Steel polished and satin-finished. Bezel set with 94 diamonds, brilliant cut VVSI (0.42 cts).
41 mm diameter.
CRYSTAL Anti-reflective sapphire crystal and sapphire back.
DIAL
Silvered, sunray pattern.
Month indicator with heart-shaped cut-out.
Applique hour-markers.
WINDING CROWN Screw-lock winding-crown with the Pierre DeRoche logo.
WATER-RESISTANCE Water-resistant to 50 m.
STRAP
Burgundy Cordudra-look leather strap with steel folding clasp.
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PIERRE DEROCHE
LE REVERS 1
1345 LE LIEU
SWITZERLAND
T. +41 21 841 11 69
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www.facebook.com - Pierre-DeRoche
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www.PierreDeRoche.com
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