Girard-Perregaux Bridges 99820-21-001-BA6A Manual de Usario

Girard-Perregaux Mirar Bridges 99820-21-001-BA6A

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INSTRUCTIONS FOR USE
MINUTE REPEATER
TOURBILLON WITH BRIDGES
MINUTE REPEATER
TOURBILLON WITH BRIDGES
The mechanical structure of this Minute Repeater Tourbillon with Bridges offers an original opportunity
to simultaneously observe on the dial side both the components of the striking-mechanism and the
hammers that produce its sound by striking the wires of the gongs. In a major innovation, this positioning
of the components facilitates optimum sound transmission when the watch is on the wearer’s wrist. This
underlines a desire not only to create a mechanism that is as attractive as it is efficient, but also to place
it clearly on display for the enjoyment of one and all.
Girard-Perregaux took the ambitious decision of asking its teams of watchmakers and engineers to
create a brand new type of calibre with a totally original mechanical structure that makes the invisible
visible. Underlying this approach is an implicit desire to perpetuate the Firms expertise and watchmaking
tradition, embodied by the Tourbillon with Gold Bridges also found in this model. This emblem of the
Brand, the design of which was patented in 1884, is today perceived as the aesthetic, technical and
even symbolic essence of one of the most venerable Swiss watch manufactures still in existence.
GIVING SOUND THE QUALITY IT DESERVES
The approach adopted here, which is as complex as it is original, perceptibly improves acoustic
performance while offering observers the opportunity to appreciate the subtle mechanism of the minute
repeater complication not only with their ears but also with their eyes. It should be noted that this is set in
motion by sliding a bolt traditionally placed at 8 oclock on the left-hand side of the case-band. Sliding
this trigger-piece rewinds the spring contained in the minute repeater barrel. Once the maximum limit has
been attained, this minute repeater winding mechanism releases the «on-off» control - an organ designed
to prevent the striking-mechanism from starting if the winding of the trigger is not fully completed, thus
preventing an incorrect acoustic indication of the time. The enhanced structure that allows the components
of the striking-mechanism to be seen through the opening cut into the dial and the astute positioning of the
hammers and gongs on the same side, enables the observer to follow the triggering operations with his
gaze, while at the same time also watching the hammers strike the gongs. It will be seen that, of all the
minute repeater components, the only one that remains both invisible to the eye and almost undetectable
by the ear is the complex organ known as the ywheel. Designed to regulate the hammersstriking speed,
it operates on the case-back side so as to limit any sound emissions, however feeble they may be, and
thus guarantees this watchmaking musical instrument’s acoustic qualities.

Especificaciones del producto

Marca: Girard-Perregaux
Categoría: Mirar
Modelo: Bridges 99820-21-001-BA6A

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