Tourbillon with Three Gold Bridges Pocket Watch
In Tribute to Both its Own Heritage and a Masterpiece of Swiss Haute Horlogerie, Girard-Perregaux Presents a Contemporary Reissue of the Tourbillon with Three Gold Bridges Pocket Watch; the Very Same Model Awarded a Gold Medal at the Paris Universal Exhibition of 1889
This extraordinary creation is Girard-Perregaux’s latest step in the perpetuation of a tradition begun in the 1860s by La Chaux-de-Fonds watchmaker Constant Girard-Perregaux. After devoting lengthy research to the tourbillon, in 1884 he patented a movement with three arrow-shaped bridges neatly arranged in parallel. This completely revolutionary architecture was recognised in 1889, when the timepiece was awarded a gold medal at the Paris Universal Exhibition. The watch left a profound mark on the history of the watchmaking art, not only thanks to its beauty but also to the aesthetic yet functional approach to the design of its movement.
In total, Girard-Perregaux produced more than sixty Tourbillons up to the start of the 20th century. However, it wasn’t until the end of the 1970s that the Manufacture took the decision to embark on the production of a series of pieces identical to the 1889 original. This highly ambitious project meant relearning the methods required to produce antiquated components and readopting long-abandoned techniques. When the Brand unveiled the very first piece in 1982, it received a suitably rapturous response.
Now, in 2010, more than ten years after the production of the last Tourbillon pocket watch, the Manufacture has unveiled a new expression of this unique savoir-faire. The result of more than a year’s work by a talented watchmaker, this magnificent creation is a window onto the past, revealing genuinely exceptional craftsmanship.
An Extraordinary Movement
A real icon of both the Girard-Perregaux Brand and Swiss Haute Horlogerie, the pocket watch’s movement is distinctive not only in its construction, but also in its unrivalled finishes.
The Tourbillon cage is in the form of a lyre, which since the 1880s has been recognised throughout the watchmaking world as the signature of the Girard-Perregaux Brand. Its 92 components are produced, finished, assembled and adjusted with the precision and skill required for such small-scale work. As was commonly the case with high-quality watches in the 19th century, the model is equipped with a Guillaume-type bimetallic balance which compensates for variations in temperature to ensure greater rate precision.
Constant Girard-Perregaux equipped his Tourbillon with a pivoted detent escapement. This mechanism has, of course, been reused on this model, in spite of the difficulties its production and adjustment present: its total length is no more than 8.5 millimetres, and the gold detent spring has a thickness of just 0.04 millimetres.
The movement comprises a total of 249 components, which are pre-assembled, disassembled, adjusted, checked, dismantled and decorated, one by one, before being finally assembled. This magnificent architecture is the result of meticulous adjustment and numerous checks. As was customary in the 19th century, its operation was then checked by an independent external testing body, which awarded it the title of chronometer based on its exceptional results: the average rate variation over 15 days was no more than 0.1 second per day.
A Unique Aesthetic
The mechanical excellence of this timepiece is matched by fine attention to the aesthetics, which instantly evoke the Girard-Perregaux tradition: the design uses the exact configuration of three parallel, arrow-shaped bridges, and the finishes are unique in themselves.
The exquisite brilliance of the three bridges supporting the tourbillon, the gear train and the barrel is the fruit of an entire month’s meticulous work. The surfaces of the bridges, as well as the screws, are polished to obtain a uniform lustre, without even the slightest imperfection. Displaying a particularly delicate and spectacular finish, the arms of each bridge are curved to produce an arched surface.
In the tradition of Girard-Perregaux’s classic pocket watches, the dial is made from white enamel. Indicated by long, blued steel hands, the hours are marked by Arabic numerals, while the minutes are indicated by a minute scale running around the edge of the dial. The small seconds are indicated at 6 o’clock on an offset dial which also features a minute scale.
The solid pink gold case is in the hunter style, and incorporates a hidden mechanism which opens the cover on the dial side: pressing the push-piece on the crown opens the cover allowing the time to be read instantly. The movement is protected by two covers, one of which features an engraved decoration of striking finesse. The other is completely blank. This is to enable the future owner to choose the engraving and guilloche decoration which will complete the piece.
Customised to the owner’s taste, this remarkable creation will become unique, in accordance with the finest watchmaking tradition.
Specifications
18kt rose gold hunter-style case, measuring 60mm x 20mm with a secret mechanism actuated by the coaxial push-piece on the crown for opening the dial side cover. Enamel dial with flame-blued steel hands.
Movement is a Girard-Perregaux Tourbillon with Three Gold Bridges movement, manual winding, measuring 45mm. It has 30 jewels and 21,600 vph.
Escapement: pivoted detent; Balance: bimetal Guillaume compensator; Hairspring: Breguet with Phillips terminal coil.
It is COSC-certified as a chronometer.
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