Greubel Forsey Tourbillon Universal Wheel
Greubel Forsey presents the brand’s eighth main invention with the Tourbillon Gimbal watch.
Greubel Forsey has been developing new tourbillons for many years. Over the past three years, this particular tourbillon has moved through concept to reality and today debuts as the studio’s 8th major invention.
Tourbillon universal wheel: a brand new level of timing precision
In order to achieve a new level of time precision, the tourbillon common wheel relies on three support beams: a rapidly rotating tourbillon, a 30° bevel as well as two rings that continuously swing back and forth.
For twenty years Greubel Forsey has argued that contemporary watchmaking has not yet tired all the technical possibilities of good watchmaking. The studio has proven this with 7 ground-breaking inventions that strategy the fundamentals of watch motion regulation and other important problems from a completely new perspective.
This effort dedicated to chronometric performance now proceeds with the launch of the eighth major invention: the actual universal tourbillon.
An unprecedented tourbillon: Cardan Tourbillon
The Tourbillon Universal Wheel takes its be derived from its complexity and is made to achieve a new level of chronometric performance. It combines 3 principles. First: tourbillon. Trademarked by Abraham-Louis Breguet within 1801, this device was designed to make up for rate deviations in up and down position. For Greubel Forsey, this is not the end of the tale, just the beginning.
The high-speed tourbillon that moves once every 16 secs
While most tourbillons create one revolution every one minute, Greubel Forsey's eighth significant invention spun almost 4 times as fast. It takes only 16 seconds. This is the quickest rotation time of a Greubel Forsey tourbillon to date. It may complete more positions quicker and therefore provides significantly greater average performance.
In addition , this tourbillon is equipped for the first time having a large balance wheel created and manufactured by Greubel Forsey. It takes full advantage of a great balance between mass, dimension (12. 6mm) and improved vibration. Their high inertia also makes them less delicate to vibrations and speed fluctuations.
The 2nd principle: 30° angle. The actual tourbillon - as it was conceptualized more than two hundred years ago : was designed for pocket timepieces to be worn vertically. With regard to watches, the concept had to be totally rethought and optimized with regard to everyday use in the twenty first century.
3rd Principle: A high-speed tourbillon inclined at 30° is actually guided by two portable rings interconnected by 2 90° axes. The bands tilted back and forth in forty eight seconds. While the design will be reminiscent of a gimbal, it really is significantly different in that both rings are free to move and the role is to keep the item they are holding level. Within the tourbillon universal wheel, the particular inclination of the ring is usually controlled between +30° and also -30°, while the inclination from the tourbillon is also 30°, however it never changes. This enhances the relationship between angular acceleration and timing performance.
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Universal tourbillon and its chronometric power reserve
The tourbillon universal steering wheel has four barrels. It is really an extraordinary design that has just appeared once in two decades from Greubel Forsey. They may be stacked coaxially and have the sliding mainspring to prevent too much tension when winding. The particular chronograph power reserve is eighty hours. From this point upon, the timepiece still operates very well, but its accuracy might no longer meet Greubel Forsey's tight tolerances.
Universal tourbillon and its revolutionary aesthetics
Since the tourbillon cannot be held in place with a fixed uppear bridge, this specific function is performed by a couple of universal joints. With its 9th major invention, the Produce Greubel Forsey has created a fresh tourbillon that not only appears like it is flying, but can also be original and patent-protected, without having retaining traditional construction. Typically the deceptively complex structure along with minimal components provides an open up, airy aesthetic that pulls attention to the admirable technicians.
Specific components of the tourbillon cardan require only up to about three days of work to achieve last hand finishing. A variety of distinctive finishes have been developed especially for this watch. The work dish is made of matte nickel silver precious metal with polished bevels along with ruled sides, while the ti main plate has big polished angles as a background for the suspension. But that is not all: the upper bridge in the tourbillon cage is made of matte titanium with straight feed texture on the sides in addition to polished bevels on the top as well as bottom. The bow continues to be polished. This component by yourself took over 30 hrs to complete.
Often the hanging rings have a matte finish, with polished bevels and ruled sides, as the lower plate is hand-brushed - a task that requires unique expertise from the studio. Lastly, there are two dials (hours, minutes and seconds): 1 with circular texture, refined sides and a very large emphasize angle, and the other together with polished outer sides.
The light aesthetics on the tourbillon universal joint
Greubel Forsey also produced a high-domed sapphire amazingly for this watch. It completely protects the tourbillon as well as its suspension and provides a highly new, technical look. As a result, typically the majestic oscillation of the stability wheel with a diameter associated with 12. 6 mm and also the two universal joints encircling it are clearly noticeable.
The Tourbillon Gimbal watch will be built with a 45. 5 mm ti case. This metal had been chosen for its modernity and also lightness, perfectly in line with the lighting aesthetic of the tourbillon’s gimbal.
Technical features of tourbillon universal tyre
Case: Titanium with good domed synthetic sapphire ravenscroft. Transparent case back using high-domed synthetic sapphire very. The bezel is hand-polished and the middle of the case is definitely hand-grained with straight materials. • Titanium safety anchoring screws. Embossed and polished " Tourbillon Cardan" and " Greubel Forsey" text on the hand-stamped background. Waterproof to three ATM - 30 mirielle - 100 ft (standard NIHS 92-20/SN ISO 22810: 2010)
Dimensions: Situation middle diameter: 45. fifty mm / Bezel size: 46. 00 mm or Case height 13. seventy eight mm / Synthetic sky-blue crystal height: 18. fifteen mm. Polished titanium overhead with GF logo
Dial side: multi-level precious metal dial, hollow columnar, round texture, engraved minute group, polished side, gold hours markers. The small seconds hands and power reserve indicator are made from gold, engraved and colored. Engraved and painted FRIEND logo
Hands: Refined steel hour and moment hands with Super-LumiNova, finished steel small seconds along with power reserve hand, hand-polished countersunk, flat, black, polished suggestions
Manually wound movements with patented Gimbal Tourbillon: Gimbal Tourbillon • Hrs and minutes • Little seconds • Power reserve
Movement dimensions: diameter 39. 60 mm, height thirteen. 53 mm. Number of elements: Movement: 389 components, Gimbal Tourbillon cage: 98 parts, Frame weight: 0. ninety two g. Observatory power reserve 70 hours. 49 olive-shaped curve bearing gemstones set in rare metal sleeves
Barrels: 4 coaxial, standard-coupled, fast-rotating barrels (one revolution in second . 7 hours), one of that is equipped with a sliding springtime to prevent excessive tension
Relief, circular texture, dark coating, polished bevel
Balance: Internal balance having variable moment of inertia and six golden middle time screws (diameter twelve. 60 mm), frequency twenty one, 600 vibrations per hour
Hairspring: cross-end curve, Geneva pin
Bridges in addition to Baseboard: Titanium and Dime Silver, Matte and Speckled, Polished Bevels and Countersinks, Ruled Side Flaps, Hand crafted Bevels and Skeleton Crate Pillars
Movement edges: Black flat tourbillon link, polished steel, polished chamfered edges and countersunk holes, etched gold plate, individually figures, circular texture, polished chamfered edges, ruled flanks
Gimbal Tourbillon: The extremely fast-rotating internal tourbillon cage (one trend every 16 seconds) is made from titanium, polished and hand-chamfered, tilted at a 30° position, and equipped with gold counterweights. External flying gimbal crate, 48 second cycle, 30° dual variable tilt, slick and hand chamfered, reigned over sides.
Gear teach: involute circular profile, bevel gear with profile smile
Display: hours as well as minutes, small seconds, reserve of power display area
Band: nonanimal derived material, hand-sewn, titanium folding clasp, imprinted with GF logo
