Greubel Forsey‘s Double Tourbillon Technique 30 ° is now available in ceramic. For most watch brands, the release of watches with new materials is not a big news, but for this watch, the manufacturer has a limited number of watches that collectors will pay attention to. Greubel Forsey watches, mostly tourbillons, are rare. Richard Mille appears at auction less often than collectors imagine, but when the auction house appeared, it was outside Patek Philippe and Rolex in the second-hand market One of the few brands that has earned high prices.
The Double Balancier 30 ° was first launched in 2004 and is the first timepiece by partners Robert Greubel and Stephen Forsey. It was revolutionary at the time-the tourbillon was still a rarity-and was known for its accuracy and advanced design. Since then, the watch has won multiple awards for its precision timing (precise timing) and unique design. The two tourbillons rotate at different speeds and together make up the outstanding timing function of the part. The first tourbillon cage rotates every four minutes. Inside, the smaller cage equipped with the balance wheel and spring assembly is inclined 30 ° relative to the first cage. Spin every 60 seconds. The combination of 30 ° inclination and different speeds of the two tourbillons improves the timing function through the position error caused by average gravity. Four coaxial barrels and a spherical power reserve differential add up to a total power reserve of 120 hours.
In addition to the unique complex and efficient movement and the tried and tested value retention, this watch has two extraordinary features: design and finish. Greubel Forsey is a pioneer in the art of contemporary hollow-out table design. This watch takes it to a whole new level.
The tourbillon bridge, barrel bridge, differential bridge and power reserve bridge have been removed and reworked in sapphire to show the internal mechanism of the timepiece. The lower tourbillon bridge (also made of sapphire) accurately replicates the original steel bridge with Double Tourbillon 30 ° technology, marking a major achievement in the sapphire craft.
The hour and minute hands are also placed on the sapphire crystal ring, as is the four-arrow second hand on the tourbillon carriage, which further reduces any obstacles to viewing the movement. The small seconds and power reserve discs are finished in blue to match the new ceramic case and make the functions more legible-after all, if you don’t understand, what’s the point of having an ultra-precision watch with a long power reserve? Indications? The central hour hand and Super-LumiNova on the markings also help improve readability. Like all Greubel Forsey watches, the finishes are perfect, including hand-chamfered with polished surfaces, polished sinkholes, and matted palladium / nickel silver main panels. The entire body radiates light.