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PRE-SIHH 2012

GIRARD-PERREGAUX 1966 ANNUAL CALENDAR
AND EQUATION OF TIME

ThE GIRARD-PERREGAUX 1966 COLLECTION hAS BEEN ENRIChED BY A NEW MODEL WITh AN ASSERTIvE ChARACTER.
COMBINING ThE RANGE’S ELEGANCE AND PURITY Of LINE WITh ThE ORIGINALITY Of A RUThENIUM DIAL, ThE MANUfACTURE PRESENTS A NEW LOOK fOR ITS ANNUAL CALENDAR AND EQUATION Of TIME MODEL.

1966: Girard-Perregaux received the Neuchâtel Observatory’s
Centenary Prize in recognition of its developments in the
field of research and precision. The Girard-Perregaux 1966
therefore pays homage to the brand’s innovative spirit and
illustrates its creative freedom, a combination of watchmaking
excellence and style. Unsurprisingly, it has now established
itself as one of the brand’s emblems.

This timepiece possesses all the assets of beautiful watchmaking,
including its movement, the GP033M0. Composed of
287 parts, this calibre features remarkable finishes and was
entirely developed and produced by the Girard-Perregaux
Manufacture.

The annual calendar presenting the date and month automatically
takes the length of the month into account, requiring only
the occasional correction every 28th february of non-leap
years. With its hand at 4.30, the equation of time indicates
the difference between the real solar time and the mean or
civil time. The length of a solar day actually varies daily due
to the elliptical shape of the Earth’s orbit. This astronomical
complication is based on an ingenious mechanism incorporating
an annual disc with an elliptical cam that reproduces the
Earth’s movement around the Sun.

Taking technical sophistication even further, corrections to the
calendar are made with the crown, in both directions. The
system is simple to use and the absence of a corrector on the
case leaves the purity of its harmonious curves intact.

The refined lines of this model reflect the craftsmanship of a
sophisticated design. Created in the Manufacture workshops,
its harmoniously curved case is 40 mm in diameter and its
profile presents a remarkable silhouette. The entire ensemble
has been meticulously crafted for perfect comfort and finished
with care in order to reveal the precious nature of pink gold.
The open case-back reveals the movement and its oscillating
weight. The timepiece presents delicate decorations crafted
with respect for the strictest watchmaking traditions. The flat
surfaces are circular-grained, sunray-brushed or decorated
with Côtes de Genève, while sharp edges are chamfered then
polished, as are the flat-head screws.

The ruthenium-adorned dial was designed to offer an original,
harmonious display. Delicately sunray-brushed, it is enhanced
by baton-type applied hour markers and fine leafshaped
hands that add to its clarity. The counters with their
precise markings increase the readability of the functions.


TECHNICAL SPECIFICATIONS

Pink gold case
Diameter: 40.00 mm
Height: 10.72 mm
Sapphire crystal
Sapphire crystal case-back
Water-resistance: 30 metres

Girard-Perregaux GP033M0 movement
Mechanical with automatic winding
Calibre: 11 ½ ’’’
Frequency: 28,800 vibrations / hour (4 Hz)
Jewels: 44
Power reserve: minimum 46 hours
Functions: hours, minutes, small seconds, annual calendar,
equation of time

Black alligator strap, pink gold pin buckle
Reference: 49538-52-231-BK6A


DETAILS OF THE MOVEMENT'S COMPONENTS

Number: 287
Balance wheel: variable inertia with gold regulating screws
(diameter: 7.18 mm)
Main plate: rhodium-plated, circular-grained above and below,
diamond-cut facets
Barrel: snailing on the cover, sunray-brushing on the underside
Gear-train bridge: polished and diamond-cut facets, circular-grained
on the underside, drawn sides, diamond-cut recesses,
Côtes de Genève and “Girard-Perregaux eagle” engraving
Oscillating weight: pink gold, circular Côtes de Genève
Gear-train: gilded 2N18 wheels, burnished pivots,
circular-grained sides