Limited Edition of 18 Pieces
“As a sailor heading towards the seas, driven by the celestial vault, I found my star: the Astronomia Sky,” says Jacob Arabo, founder of Jacob & Co. In 2014, Jacob & Co launched the Astronomia Gravitational Triple Axis Tourbillon.
This year, the brand is further extending upon the innovations of the Astronomia with the new Astronomia Sky, adding a never-before-seen complication: a sidereal display in three dimensions combined with an oval sky indicator and a 24-hour day and night display.
The case, in 18kt rose gold, measures 47mm x 25mm. It has double AR-coated sapphire crystals and sapphire side apertures.
Movement is the Swiss manual-wind, exclusive to Jacob&Co. caliber JCAM11 with 42 jwels, 21,600 vph and a power reserve of 60 hours. It is done in titanium.
System: Triple Axis Gravitational Tourbillon; Finishing: Plate and Bridges: Hand Angled and Polished, Flank Draw, Circular Graining, Polished Sink; Polished Screws;
Celestial Dial covering the internal surface of the inside case, representing the celestial vault through zodiac signs. A full rotation in 1 sidereal year 1. Oval sky indication: Showing the portion of the stars visible from the northern hemisphere, a full rotation in 1 sidereal day 2 above the celestial vault. Month indication: 12 months on sides of the celestial dial.
DAY AND NIGHT INDICATION
Lacquered hand-engraved titanium globe, rotating on 2 axes: 1st Axis: A full rotation on itself in 24 hours; 2nd Axis: Central Axe, travelling across the celestial vault in 20 minutes; Inside a tinted half-domed sapphire, symbolizing night and day.
GRAVITATIONAL TRIPLE AXIS TOURBILLON
Rotating on 3 axes: 1st Axis: in 60 seconds, 2nd Axis: in 5 minutes, 3rd Axis: Central Axe travelling across the celestial vault in 20 minutes.
ORBITAL SECOND INDICATION
Rotating on 2 axes: 1st Axis: in 60 seconds, 2nd Axis: Central Axe, travelling across the celestial vault in 20 minutes.
Open Worked Titanium Wheel and Hand indicating seconds;
HOUR & MINUTE INDICATION
Patented differential system
Rotating on a Central Axe, travelling across the celestial vault in 20 minutes;
CUT RED MOON
Weight: 1 carat; 288 Facets Orange Sapphire Patented Jacob Cut Rotating on 2 axes: 1st Axis in 60 seconds, 2nd Axis: Central Axe, travelling across the celestial vault in 20 minutes.
Dial and Hands: Celestial Dial: Blue Grade 5 Titanium, 18kt gold hand-engraved and applied stars and zodiacal signs; Hour and minute subdial: Titanium, hand angled and polished, lacquered indeces; Differential Gear System; Hand-finished blued hands.
It comes on a black alligator leather strap with an 18kt rose gold folding buckle.