Astronomia Sky by Jacob & Co.: a three-axis tourbillon in the sky
Jacob Arabo, founder of Jacob & Co, said: "Like a sailor sailing across the seas guided by the vault of heaven, I found my star, the astronomical sky". Like humans, fascinated by observing the night sky since the dawn of time, Jacob & Co. has accomplished this new feat inspired by country astronomical clocks, masterpieces of technology and aesthetics! high quality replica watches
In 2014, Jacob & Co. already dazzled the watch industry with the introduction of the Astronomia Tourbillon Gravitationnel Triple Axes. This year, the brand took the challenge a step further with the Astronomia Sky, adding an unprecedented complication: a three-dimensional star display combined with celestial indicators and day/night information. To fully understand the intricacies of this feat, each innovation will be detailed individually.
The celestial dial that covers the bottom of the Astronomia Sky case completes one rotation in one sidereal year, the time it takes the Earth to orbit the Sun relative to the stars. The celestial dial is made of grade 5 blue titanium and features an 18-carat gold star and hand-engraved zodiac signs.
Above the star dial, an oval celestial indicator shows the portion of the star visible from the northern hemisphere. This dial completes one complete revolution in one sidereal day, the time it takes the Earth to rotate once on its axis (23.560916 hours).replica watches for men
At the center of the satellite's axis, a hand-carved titanium sphere rotates on its axis, shaded by a dome of colored sapphire crystal symbolizing day and night. The globe rotates to the rhythm of the satellites, making one revolution every 20 minutes.
Astronomia Sky: additional information for connoisseurs ..
4 satellites circle the dial in perpetual motion in 20 minutes. Among them, the first axis of the three-axis gravity tourbillon rotates for 60 seconds, the second axis rotates for 5 minutes, and the dial rotates for 20 minutes.
The third satellite is the Orbital Seconds Indicator, a skeletonized titanium wheel that rotates on itself for 60 seconds and around the dial for 20 minutes.
Finally, the fourth and final satellite is the "Jacob Cut" orange sapphire with 288 facets. The first of its kind in contemporary jewelry, this sapphire rotates around its axis every 60 seconds and around the dial every 20 minutes.
Jacob & Co. sought a solution to this complex problem in the simplest possible way. The bottom of the Astronomia Sky has two lifting rings and two wheels. The first bail allows setting the time and a day/night indicator, both based on the 24-hour solar rhythm. The second bail is used to operate the mechanical movement. As for the wheels, the first adjusts the sidereal time and the other the celestial indicator.
Known for its unique and bold complications, Jacob & Co. has once again proved its talent with the Astronomia Sky.