lot 01

Gerald Genta

Tourbillon Sonnerie Repetition "Piece Unique"

Estimate CHF 200 000 / CHF 300 000
Starting bid CHF 170 000

Hammer price CHF 265 000
Total bids 9
Buyer’s premium will not be charged
When it comes to watch design as art, Gérald Genta is by far the first to be mentioned. Some call him the Picasso of watch design, which underlines his status, but isn’t relevant in terms of style. His influence, his touch on this design is obvious to me. Gérald Genta can be concise, as with the Royal Oak, the Nautilus, or the Seamaster Titanium, but he can also be overly baroque. This lot convincingly demonstrates this facet of his talent, even though the watch was produced when the master had already left the brand he founded. Interest in this lot is also heightened by its incredible rarity. Among the unique specimens, as most models of the Grande Sonnerie series were produced, there are only a few that are equipped with a manual winding caliber. I repeat, this is an extremely rare piece, a lucky find for the astute collector and an even greater opportunity for him, as the brand’s watches are still undervalued on the secondary market.
Alex Kutkovoy
More than 10 years editor in Revolution
Estimate
CHF 200 000 / CHF 300 000

Specification

CaseYellow gold case 750/1000 with a sapphire caseback, crown grande sonnerie pusher at 9 o'clock, grand or little sonnerie pusher at 10 o'clock, silence or striking pusher at 7 o'clock
StrapOriginal black Alligator strap, with a original yellow gold pin buckle
DialSkeletonized dial, with a Tourbillon display at 10 o'clock, time display at 3 o'clock
MovementFinely engraved & gold plateded hand-wound movement, with one minute Tourbillion, grande & petite sonnerie with 4 hammers, minute repeater, power reserve indication, Poinçon de Genève
Ref.GS1.X.20
D=41mm

Condition report

Case:Very good, small signs of wear
Strap:Very good, small signs of wear
Dial:Mint condition
Movement:All functions working properly
Amplitude (Dial on top/Lift angle 52):Approx 300°
Accuracy (Dial on top):Approx -10 sec / day
Box:Yes
Papers:Yes

Details 

A unique, impressive and extremely complicated yellow gold grande and petite sonnerie minute repeating wristwatch with Westminster chime and tourbillon, from the haute horlogerie Swiss watch brand Gérald Genta, founded in 1969 and active until 2010. Estimated production period: 2004–2010. Сase in 18k yellow gold, diameter 41mm, sapphire caseback. Openworked dial with spherical polished indexes, and ‘filet sauté’ guilloché motif. Caliber GG 31001, hand-wound, with reversed hand-fitting, chiming and repeating on four hammers onto four gongs, marked by Poinçon de Genève quality mark. Power reserve of sonnerie mechanism: 24 hours in grande sonnerie mode, 28 hours in petite sonnerie mode. Functions – sub-dial for indication of time in hours and minutes at 3 o’clock, tourbillon at 10 o’clock, grande and petite sonnerie and minute repeater with Westminster chime with four striking hammers and four gongs, sonnerie selectors (‘grande/petite’ and ‘silence/chime’) and power reserve indicators (of the caliber and the sonnerie mechanism) installed on the back of the case. Gérald Genta black leather strap with 18k yellow gold Gérald Genta pin buckle. 

Lot essay 

Gérald Genta, considered to be one of the most important modern watch designers and actually the inventor of this profession, during his career collaborated with many renowned Swiss watch manufacturers including Patek Philippe, Audemars Piguet, IWC, Universal Genève, Omega, Bulgari, Cartier, Seiko and others. World famous as the father of the Nautilus and Royal Oak designs, he started his own line in 1969. The Gérald Genta brand is widely known for its outstanding, daring, sometimes provocative designs, fine craftsmanship, and extraordinary uber-complicated sonnerie models. The first version of the Grande Sonnerie movement with a grand chime function, cathedral (Westminster) quarter chime, minute repeater and tourbillon was completed in 1994 by Pierre-Michel Golay, who had been working at Gérald Genta since 1973 and at the time was their technical director. From 2002, he headed the R&D department at Franck Muller. The Gérald Genta brand is now owned by Bulgari, which acquired it in 2000. In 2010 the production of collections with the Gérald Genta brand name ceased to continue, although in 2020 they were restarted, albeit on a very small scale. After 2010 Bulgari continued to produce Grande Sonnerie watches under its own brand name. 

Since 1994, Grande Sonnerie wristwatches have been produced in extremely limited quantities, usually a few per year, with the production of one watch usually taking about one year. During its production span, the ultra-complex movement was constantly modernised, and various versions of it were also developed. This includes the caliber 31001 of the present example – hand-wound, chiming and repeating on four hammers onto four gongs, playing a Westminster chime with a different tune for each quarter – and a handful of self-winding movements featuring various configurations with a traditional or retrograde time indication, or with a perpetual calendar. The peculiarity of the present caliber 31001 lies in the use of a reversed hand-fitting scheme, so that the chiming and repeating mechanism, which is usually situated under the dial, is fitted on the reverse side of the watch, while the time indication, tourbillon, striking hammers and gongs are on the dial side of the watch. This scheme was used by Gérald Genta extremely rarely, much less often than other, self-winding versions. 

The present example features the hand-wound caliber 31001, chiming and repeating on four hammers onto four gongs, playing a Westminster chime with a different tune for each quarter

The present example is also peculiar in the extraordinary combination of two styles. The round case of the Arena collection and the dial with polished spherical indexes and sword-shaped hands are unmistakably of the Empire style, while the operating elements (the winding and switching crowns, repeater start button), as well as the caliber with golden bridges, decorated by flamboyant ‘fleurisanne’ engraving in the ‘mille fleurs’ version, are signs of the Baroque style. The ‘fleurisanne’ style, which rarely appears in wristwatches (solely of the high-end category), is known to connoisseurs as one of the ways to decorate luxury pocket watches produced in the 19th century for the Chinese market – the so-called Montre Chinoise, whose manufacturers were concentrated in the Swiss town of Fleurier (Val-de-Travers valley, Neuchâtel canton). 

Finished to the highest standard, this watch reveals an appealing flamboyant side of high watchmaking art – haute horlogerie. 

Reasons to bid 

The Grande Sonnerie Carillon Westminster Tourbillon Ref. GS1.X.20.893.CN.BA Piece Unique would appear to be a fine purchase for the collector thanks to its outstanding and memorable design, elaborate hand finishing and decoration of the caliber, and the extraordinary combination of Empire and Baroque styles. The grande and petite sonnerie function, as well as a minute repeater is extremely rare and the most complicated among traditional mechanical haute horlogerie complications, made even more sophisticated by the addition of a tourbillon. It would also be a fine occasion for the collector to obtain one of the iconic timepieces of modern haute horlogerie, originating from Gérald Genta, one of the most well-respected names of luxury watchmaking. 

*Under the aegis of Maître Marco Breitenmoser, Huissier Judiciaire