Celestial panoramic three-axis gravity gyroscope
Flywheel Three-axis tourbillon in the sky
“Like a sailor crossing the ocean guided by the sky’s dome, I found my star, the astronomical sky,” says Jacob & Co Like Man founder Jacobarabo Since ancient times, Jacob & Co. has been fascinated by observing the night sky and is inspired by the countryside Inspired by astronomical clocks, technical and aesthetic masterpieces, this new technique was completed.
In 2014, the Astronomia three-axis gravity tourbillon watch launched by Jacob & Co. has amazed the watch industry. This year, the brand takes this challenge further with the Astronomia Sky watch, adding a new complication: a three-dimensional star display that combines celestial indicators and day/night information. In order to understand the full complexity of this feat, each innovation will be individually detailed.
sidereal time
The celestial disk covering the base of the Astronomia Sky case completes one rotation in one sidereal year, the time it takes for the Earth to orbit the Sun relative to the stars. The celestial dial is made of grade 5 blue titanium and features 18-karat gold stars and hand-engraved zodiac signs. best replica watches
celestial indicator
Above the star dial, an elliptical celestial indicator shows the portion of the star visible from the northern hemisphere. The dial completes one revolution in one sidereal day, the time it takes for the Earth to rotate once on its axis (23.560916 hours).
day/night indicator
At the center of the satellite axis, a hand-carved lacquered titanium sphere rotates on its own, shaded by a tinted sapphire crystal dome symbolizing day and night. The Earth rotates synchronously with its satellites, completing a rotation every 20 minutes.
The race for satellites
4 satellites rotate around the dial in 20 minutes. Among them, the three-axis gravity tourbillon completes one revolution every 60 seconds on the first axis, one revolution on the second axis every 5 minutes, and one revolution around the dial every 20 minutes. https://www.moon-watch.co
The hour and minute indications can always be read in the correct orientation thanks to an ingenious differential system, with the indexes remaining vertical.
The third satellite is the orbiting seconds indicator, a skeletonized titanium wheel that rotates on itself every 60 seconds and around the dial every 20 minutes.
Finally, the fourth and final moon is a “Jacob cut” orange sapphire with 288 facets. The first sapphire in contemporary jewelry, this sapphire rotates around its axis every 60 seconds and around the dial every 20 minutes.
Optimization and adjustment
Jacob & Co. sought a solution that would adapt this major complication in the simplest possible way. The Astronomia Sky has two handles and two wheels on the bottom. The first knob allows setting the time and day/night indicator, both based on the 24-hour solar rhythm. The second handle is used to operate the mechanical movement. As for the wheels, the first allows you to adjust the sidereal hours and the other allows you to adjust the celestial indicators.
Jacob & Co. is known for its unique and bold complications, and its Astronomia Sky watch once again proves its talent. wholesale replica watch
About Jacob & Co.
For 25 years, Jacob & Co. has created revolutionary watches and gorgeous jewelry that delight private clients, attract experts in the watchmaking world, and attract celebrities. At this point, it has become a globally recognized and respected luxury brand. The company’s flagship store and headquarters are located at 57th Street and Park Avenue in Manhattan, in one of the most exclusive neighborhoods in the world. The company’s watchmaking headquarters is located in the heart of the watchmaking industry in Geneva, Switzerland.
astronomy sky
technical sheet
move :
Manufacture Jacob & Co. Mechanical hand-wound JCAM11; Diameter: 40mm; Height: 17.15mm; Composition: 395; Material: Titanium; Ruby: 42; System: Three-axis gravity tourbillon; Finish: Bridges and bridges are hand-poured Corners and polished, brushed sides, edge texture, polished grooves; polished screws; Power reserve: 60 hours; Frequency: 21,600 vibrations/hour (3 Hz).
Function:
side display
Celestial Dial: Covers the interior surface of the box, representing the sky through the zodiac signs.
Completes one complete rotation in one sidereal year1.
Celestial indicator: Indicates the portion of a star visible from the northern hemisphere, rotating once per sidereal day2.
Month indication: There are 12 months on either side of the celestial dial.
day/night indicator
Lacquered and hand-engraved titanium globe, rotating on 2 axes:
• Axis 1: rotates once on its own in 24 hours;
• Second axis: central axis, passing through the sky in 20 minutes;
Sheltered by a tinted sapphire crystal dome symbolizing day and night;
Three-axis gravity tourbillon
Rotate on three axes:
• First axis: within 60 seconds,
• Second axis: Within 5 minutes,
• Third axis: central axis, passing through the sky in 20 minutes;
Orbital seconds hand
Rotate about two axes;
• First axis: within 60 seconds,
• Second axis: Central axis, passing through the sky in 20 minutes
Skeletonized titanium wheels and hands indicating seconds;
Hours and minutes indicators
Patented differential system;
Rotating around the central axis and crossing the sky in 20 minutes; 4
red moon jacob cut
Weight: 1 carat; Patented Jacob Cut 288 faceted orange sapphire;
Perform a rotation on two axes:
• First axis within 60 seconds;
• Second axis: central axis, passing through the sky in 20 minutes;
Box:
47mm; Thickness: 25mm; Material: 18K rose gold; Skeletonized sides with sapphire crystal; Case back: 18K rose gold; Buckle: 18K rose gold buckle for winding, time setting and calendar synchronization; Mirror: Unique Sapphire dome with anti-reflective treatment.
Dial and Hands: Celestial Dial: Grade 5 blue titanium, stars and zodiac signs hand-engraved and applied in 18K gold; Hours and Minutes Dial: Titanium, hand-bevelled and polished, lacquered scales; differential system; hands: Blue, hand finished.
Strap and buckle: alligator leather; 18K rose gold folding clasp.
Waterproof: 30m (ISO 2281).