The Astronomia is the epitome of ultra-high-end watchmaking in the 21st century and is recognized worldwide as a symbol of Jacob & Co’s watchmaking expertise. A world first in both its unprecedentedly bold concept and its fully mechanical structure, the Astronomia transcends impressive horological achievements and is regarded as an outstanding multidisciplinary engineering achievement. perfect replica watches
Astronomia Meteorites link Astronomia with its extraterrestrial inspiration and Jacob & Co’s unique gem-setting techniques. It is a cinematic sculpture, animated by its four-armed movement structure, spinning and floating in the sapphire and diamond-studded spaces within its imposing case. A total of 383 triangular-cut white diamonds adorn the case, lugs and dial, as if this unique piece of Astronomia had been transformed during space travel, like a meteorite transformed into a precious diamond upon entering Earth’s atmosphere.
Filled with unparalleled watchmaking solutions and embellished with exceptional finishing techniques, Astronomia Meteorite has earned it an unrivaled and iconic reputation in haute horology.
Exclusive astronomical movement
The four arms of the Astronomia Meteorite host the watch’s three-axis tourbillon chronograph mechanism, hand-painted blue magnesium spheres showing a majestic view of Earth, exclusive Jacob-Cut® 1-carat spherical blue sapphires with 288 facets, and graded , Hollow time display. This four-armed assembly can complete a rotation around the center of the watch and against a spectacular backdrop in just 10 minutes. Another stunning feature of the Astronomia Meteorite is that each pair of opposing arms is perfectly calculated to counterweight each other – a testament to unparalleled material engineering and watch movement design. By placing the same weight on these opposing arms, its axis is freed from pull or increased pull when the motion takes a different direction in space.
Tri-Axis Tourbillon
Originally invented as a single-axis rotating cage to carry the regulating mechanisms of mechanical pocket watches for improved timekeeping, the Astronomia Tourbillon brings this 224-year-old invention to an astounding level of modern sophistication and complexity.
The three-axis tourbillon of the Astronomia Meteorite is at the forefront of ultra-high-end watchmaking: its elaborately decorated cage houses the balance wheel, hairspring, escape wheel and many other vital components. Characterized by a hollow cage, this series of finely machined parts rotates on three axes simultaneously. Hand-assembled and a dedicated fine-tuning program, the JCAM18 consistently keeps accurate time throughout its 60-hour power reserve.
It takes exactly 60 seconds for the first axis to rotate once, which is a tribute to the traditional single-axis tourbillon. The 2nd-axis rotation takes 2.5 minutes to complete, while the 3rd-axis rotation is achieved with Astronomia Meteorite’s 10-minute four-armed rotation platform. This allows for a bold new perspective on the function of the tourbillon when designed with cutting-edge, ultra-modern technology and timeless horological tradition.
288 Jacobs Cut Diamonds
A Jacobs cut diamond started out as a larger rough diamond. First, a rough diamond of sufficient size must be found, and its purity, clarity, and color must be of the highest quality inside and out, without any inclusions. If they started cutting the diamond and found inclusions, the whole diamond would be ruined.
Next, the diamond is machine cut into a circle that approximates the size of the final diamond. Shopping watch replica
Gem cutters then hand-cut each individual facet (288 facets) of the gemstone. This must be done slowly and carefully, as the stone must be perfectly round and symmetrical. The danger is that the stone will become oval rather than round. To be used in the Astronomia collection, the Jacobs cut diamond must be perfectly round and weigh exactly the same as the other three satellites (time display, triaxial tourbillon, magnesium globe).
During this process, if the gem cutter applies even a little more pressure when adding facets, too much diamond will be cut off, and the ball will end up being smaller than the desired diameter. The cutting process requires at least two weeks of dedicated, hard work.
To create the final 1 carat, 288-faceted Jacobs cut diamond, more than half of the initial rough diamond is cut away.
The complexity of hand-cutting 288 facets and ensuring everything is symmetrical and the diamond is absolutely round is what makes the Jacob & Co. diamonds used in the Astronomia collection so special.
Magnesium Balls
The globe is made of blue-lacquered magnesium with platinum continents to ensure weight consistency, as all four moons must be exactly the same weight. It takes 30 seconds for the globe to rotate once on its axis and 10 minutes to complete one revolution around the dial.
Case and crystal
The Astronomia Meteorite has a case diameter of 50 mm and a thickness of 25 mm from the highest point of its specially curved front sapphire crystal to the lowest point of the case. Available in 18K rose gold or 18K white gold, the 18K white gold version features four sapphire crystal apertures around the case perimeter, allowing unobstructed views of the spectacular movement within. Wholesale watch replica
The sides and top of the lugs of the Astronomia Meteorite case are adorned with 100 triangular-cut white diamonds, and the case perimeter of the 18K rose gold version is adorned with 124 triangular-cut white diamonds. The effect achieved is astronomically crystallized under enormous pressure and heat, much like one would imagine a meteorite would do when it intersects Earth’s path and enters the atmosphere.
dial and hands
The time display subdials of the Astronomia Meteorite are driven by a differential system so that they remain horizontal and legible as they rotate with the movement’s four-armed platform across the face of the Astronomia. The Roman numerals on the skeletonized dial are hand-engraved and filled with black lacquer, while the hand-finished hands have a gunmetal blue metallic finish. The background, also known as the diamond layer front case, is covered with 133 triangular-cut white diamonds, echoing the remarkable mechanical complexity of the JCAM18 movement, with a mesh of gold and diamonds creating a most spectacular spectacle.
At first glance:
Iconic Gravity Tri-Axis Tourbillon
50 mm 18K rose gold sapphire crystal case, sapphire crystal case back
All four satellites orbit the dial continuously for 20 minutes
Turning 288 facets of a Jacobs-cut diamond in 60 seconds
The magnesium ball rotates once in 60 seconds
Unique differential keeps time display in correct 12/6 orientation at all times, no matter where it is turned
Domed and curved anti-reflective sapphire crystal
Unique crownless design; winding and lifting bow on the case back
18K rose gold and sapphire case lugs are invisible hand-set with 80 baguette-cut white diamonds (approximately 6.10 carats).
Architectural base dial designed as meteorite fragments invisible set with 133 triangular-cut white diamonds (approximately 16.80 carats)
technical specifications
Product number: AT800.40.HD.HD.B
Movement: Hand-wound JCAM18 manufactured by Jacob & Co.; Diameter: 40mm; Height: 17.15mm; Components: 365; Power Reserve: 60 hours; Frequency: 21’600 vibrations/hour (3 Hz); Jewels: 42; System : Gravity Tri-Axis Tourbillon; Finishing: Bridges and Bridges: Hand Beveled and Polished, Sides Brushed, Circular Grain, Polished Sinks; Polished Screws; Barrel: Circular Grain; Pinions: Conical Pinion; 4 Mechanical Ball bearing unit; flat balance spring.
Functions: hour and minute discs rotating around central axis every 10 minutes, patented differential gear system; 288 faceted spherical blue sapphires rotating in 30 seconds on 2 axes (weight: 1 carat; exclusive Jacobs cut); Magnesium painted globe rotates on 2 axes in 30 seconds; gravity tourbillon cage rotates on 3 axes: 1st axis: in 60 seconds, 2nd axis: in 2.5 minutes, 3rd axis: in 10 minutes Central axis.
Case: 50mm; Thickness: 25mm; Material: 18K rose gold; Inlaid with 124 triangular-cut white diamonds (approx. 14 carats); Case back: 18K rose gold; Chain and setting time; Diamond layer Front case: 18K rose gold; 133 triangular-cut white diamonds (approximately 16.80 ct); Lugs: 100 triangular-cut white diamonds (approximately 4.50 ct); Crystal: unique domed sapphire, treated Anti-reflective treatment.
Dial and hands: titanium dial, polished and angled, lacquered indexes; hands: blue, handmade.
Strap and clasp: alligator leather; clasp: 18K rose gold folding clasp. Total carat weight: 357 triangle-cut white diamonds (approximately 35.30 carats).