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Property of the Original Owner

898

Greubel Forsey

Double Balancier Convexe

An ergonomic and impressive limited edition titanium wristwatch with small seconds, inclined double balance wheel, four-minute spherical constant differential, power reserve indication, certificate and presentation box, one of a limited edition of 66 pieces

Estimate
HK$800,000 - 1,600,000
€90,800 - 182,000
$103,000 - 205,000
HK$1,778,000
Lot Details
Manufacturer
Greubel Forsey
Year
Circa 2022
Case No
05’263
Model Name
Double Balancier Convexe
Material
Titanium
Calibre
Manual, 50 jewels
Bracelet/Strap
Textured rubber
Clasp/Buckle
Titanium Greubel Forsey deployant clasp
Dimensions
43.5mm diameter, 46.5mm including bezel
Signed
Case, dial, movement and clasp signed
Accessories
Accompanied by Greubel Forsey owner’s book stamped Elegant Watch and Jewellery Hong Kong dated 28 July 2022, additional titanium bracelet, rubber strap, instruction manual, product literature, loupe, gloves, cloth, travel pouch, fitted presentation box and outer packaging.
Catalogue Essay
The Double Balancier complication, released in 2016, represents an evolution of the brand’s original twin balance wristwatch, enhancing technical complexity and pushing the boundaries of haute horology.

The performance of the balance wheel and spring is significantly influenced by their positional orientation. Even when the watch is worn or resting flat on a surface, an inclined 30° angle serves as a constant averaging factor. With the two balance wheels set at different angles, at least one will consistently perform closer to the ideal.

The incredible differential device positioned between the balance wheels is where magic happens. Consists of three wheels stacked vertically, the top and bottom wheels are connected to each of the two escapements, while the middle wheel interfaces with the gear train. This differential effectively averages the errors generated by the two balance wheels, with the spherical constant differential rotating every four minutes.

Offered in hardly worn condition from the original owner, this timepiece comes as a full set, accompanied by an additional titanium bracelet and rubber strap, allowing for a versatile aesthetic. Limited to just 66 pieces over a three-year production span, it is exceptionally well-crafted, showcasing the genius behind its creation.

Greubel Forsey

Swiss | 2004
With the introduction of the Double Tourbillon 30 at Basel World in 2004, Robert Greubel and Stephen Forsey became major players in the world of haute horology and independent watchmaking. Their firm concentrates on high-end complicated movements with precision timekeeping and the highest quality hand finishing. They achieve this with movements featuring multiple tourbillons and inclined balance wheels — tourbillons designed for wristwatches. Forsey joined Greubel's team at Renaud & Papi SA, a high-complication specialist now part of Audemars Piguet. The team participated with Harry Winston and their Opus 6 project. In the span of 12 years, the firm has become highly sought-after by collectors for their innovative timekeeping and industrial design.
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