jacobs co.
An extraordinary timepiece with a celestial panorama and a three-axis tourbillon with gravity.
Jacob Arabo, founder of Jacob & Co. said: "As a sailor who sailed out to sea, I was driven by the vault of heaven to find my star: Astronomia Sky." A technical and aesthetic masterpiece.
In 2014, Jacob & Co has launched the Astronomia Gravitational Triple Axis Tourbillon. This year, it added a never-before-seen complication: a three-dimensional sidereal display combined with an oval sky indicator and a 24-hour day/night display.mens replica watch
sidereal time The celestial dial covering the inner surface of the Astronomia's case completes one rotation in one sidereal year - the actual time it takes the Earth to orbit the Sun relative to the stars. The blue grade 5 titanium dial features 18K gold stars and hand-engraved and zodiac signs.
Ellipse Sky Indicator Above this celestial dial is the elliptical sky indicator, which shows the portion of the star visible from the northern hemisphere. The indicator makes one full revolution in one sidereal day. A sidereal day is the time it takes the Earth to rotate once: 23.5640916 hours.
day/night indicator
In the center of the satellite axis, a lacquered, hand-carved titanium sphere rotates itself within a tinted semi-dome of sapphire, symbolizing day and night.discount replica watch
Satellite Rotating around the watch are four satellite arms that circle the dial every 20 minutes, so when you look at the watch, it never looks exactly the same. One of the satellites houses a three-axis gravity tourbillon that rotates every 60 seconds on one axis, every five minutes on the second axis, and circles the dial every 20 minutes. On the other satellite are the time (hours and minutes) subdials. Thanks to an ingenious differential gear system, the time display is always in the correct position as it rotates around the dial, in other words, 12 is always on top.
On the third satellite is the Orbital Second Hand, a skeletonized titanium wheel that rotates once every 60 seconds and around the dial every 20 minutes. On the fourth and final moon is the patented "Jacob Cut" red moon, a spherical orange sapphire with 288 facets. The first of its kind in modern jewelry, this sapphire rotates on its axis every 60 seconds and around the dial every 20 minutes.Replica Maurice Lacroix PONTOS S
optimization settings Jacob & Co. found a simple solution to setting this complicated timepiece. The Astronomia Sky has two bows and two wheels on the back of the watch to make setting it up easy. One bow is used to set the time and day/night indicators (both based on 24-hour solar time), while the other bow is used to wind the mechanical movement. One of the wheels is used to set the sidereal time and the other wheel is used to set the oval sky indicator.
All of these functions are powered by Jacob & Co's exclusive hand-wound caliber JCAM11. The movement has a diameter of 40 mm and contains 395 titanium components and 42 jewels. It beats at 21,600 vib/h and offers a 60-hour power reserve. Plates and bridges are bevelled and polished by hand.
The 47mm case is made of 18K rose gold with sapphire windows on the sides. It is water resistant to 30 meters and has an 18K rose gold caseback.
The timepiece is fitted with an alligator leather strap with an 18K rose gold folding clasp.devon watch replica