Movement: Caliber: Manufacture Jacob&Co. Manual Winding JCAM41; Diameter: 42mm; Height: 21.7mm; Components: 502; Material: Titanium; Jewels: 67; System: Triple Axis Tourbillon; Power Reserve: 60-Hours; Frequency: 21'600 vib/h (3 Hz);
Celestial Dial covering the internal surface of the inside case, representing the celestial vault through zodiac signs
A full rotation in 1 sidereal year1.
1. One sidereal year is the time it takes the earth to orbit the sun; 2. Sidereal Day= 23.5640916 hours, it is the time it takes the earth to rotate on its axis (relative to vernal equinox).
Oval sky indication: Showing the portion of the stars visible from the northern hemisphere, a full rotation in 1 sidereal day2 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 itself in 24 hours, inside a tinted half-domed sapphire, symbolizing night and day.
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.
SATELLITE AND MARS ANIMATION
Rotating on 2 axes: • 1st Axis: in 60 seconds, • 2nd Axis: Central Axe, travelling across the celestial vault in 20 minutes
HOUR & MINUTE INDICATION
Patented differential system rotating on a Central Axe, travelling across the celestial vault in 20 minutes;
THE JACOB CUT MOON
288 Facets Diamond Patented Jacob Cut (1ct.) rotating on itself in 60 seconds.
Case: Diameter: 47mm; Thickness: 25mm; Material: 18K Rose Gold; Sapphire; Case Back: 18K Rose Gold; Bows: 18K Rose Gold lift-out Rotating "bows" for Winding, Time-Setting; two Wheel on Caseback Sides for Synchronization of the Sidereal Time: Celestial Dial and Oval Sky Indicator. Crystal: Unique Domed Sapphire with Anti-Reflective Treatment; Water resistance: 30m (3atm).
Dial & Hands: Celestial Dial: Blue Grade 5 Titanium, 18K Gold hand-engraved and applied stars and zodiacal signs; Hour and Minute Subdial: Titanium, Hand Angled and Polished, Lacquered Indexes; Differential Gear System; Hands: Blued Jacob&Co designed hands
Strap & Clasp: Alligator; 18K Rose Gold Folding Buckle.
Limited Edition: 18 pieces