67Σ︎

Gérald Genta

Ref. GS1.X.20

Grande and Petite Sonnerie Tourbillon

A unique, important, and historically significant yellow gold semi-skeletonized minute repeating grande and petite sonnerie watch with Westminster chimes and tourbillon, international warranty, and presentation box

$100,000–200,000
Gérald Genta
Circa 2010, Switzerland
GS1.X.20
Piece Unique
Grande and Petite Sonnerie Tourbillon
18K yellow gold
Manual, cal. GG 31001, 55 jewels
Alligator
18K yellow gold Gerald Genta pin buckle
41mm Diameter
Case, dial, movement, and buckle signed.
Accompanied by unsigned and undated Gerald Genta Certificate of Origin and international warranty, Gerald Genta presentation box, leather folio with Genta stylus, and outer packaging.
GOOD TO KNOW
• Piece Unique
• Semi-skeletonized minute repeating grande and petite Sonnerie with tourbillon
• Featuring Westminster chimes – one of the most mechanically complex complications
• Complete set

Gérald Genta is one of the most influential figures in horological history. Having left an inedible mark in watchmaking, he is best known for designing iconic models such as the Patek Philippe Nautilus, Audemars Piguet Royal Oak, and IWC Ingenieur. His designs are flagship models of each manufacture and some even argue that his creations have themselves become a brand in itself. In 1994, Genta embarked on a journey to create his most complicated wristwatches to date.

A historically significant model in the world of horology, this timepiece was one of the most complicated wristwatches in the world when launched. In fact, one can argue that Genta was the first watchmaker to spearhead the trend of creating ultra complicated wristwatches. Previously, only pocket watches housed a multitude of complications. Perfectly encapsulating Gérald Genta's design aesthetic, the present watch not only features a grande and petite sonnerie with Westminster chimes, but also has a tourbillon mechanism. Reference GS1.X.20 is a later generation of the reference G.0027.7, which Phillips sold “Number One” in November 2021. Using the upgraded caliber GG31001, it is a manually wound movement with a reverse hand-fitting system with the striking mechanism placed on the back and the tourbillion, hammers, and gongs on the exposed dial side.

The present unique piece is a wonderful example of Gerald Genta’s extraordinary talent and master craftsmanship. This extraordinarily impressive watch represents a historic moment in the history of horology and deserves a prominent place in any collection.

Gérald Genta

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