DESCRIPTION:
The Astronomia is the epitome of 21st century ultra-high-end watchmaking and a globally recognized symbol of Jacob & Co watchmaking expertise. A world-first both in the boldness of its unprecedented concept and its entirely mechanical construction, the Astronomia has gone beyond impressive horological achievements and has been regarded as an outstanding multidisciplinary engineering achievement.
- Iconic gravitational triple-axis tourbillon
- 50mm black ceramic and sapphire crystal case
- Blackened movement and hour/minute dial
- All four satellites constantly turn around the dial in 10 minutes
- 288-facet Jacob-cut diamond turning in 30 seconds
- Magnesium globe turning in 30 seconds
- Unique differential always keeps the time display in the correct 12/6 orientation, no matter where it is the rotation
- Domed and curved, anti-reflective sapphire crystal
- Unique crown-less design; winding and setting lift-out bows on the case back
TECHNICAL SPECIFICATIONS
MOVEMENT: Manufacture Jacob & Co. Manual Winding JCAM18; Diameter: 40mm; Height: 17.15mm; Components: 365; Material: Titanium; Power Reserve: 60-Hours; Frequency: 21'600 vib/h (3 Hz); Jewels: 42; System: Gravitational Triple Axis Tourbillon; Finishing: Plate and Bridges: Hand Angled and Polished, Flank Draw, Circular Graining, Polished Sink; Hand-Polished Screws; Barrel: Circular Graining; Pinions: Conical Pinions, 4 Mechanical Ball Bearing Devices; Flat Balance Spring.
FUNCTIONS: Hours, Minutes Dial Rotating in 10 min on the Central Axis, Patented Differential Gears System; 288 Facets Spherical Diamond Rotating in 30 sec on 2 Axes (Weight: 1 carat; Exclusive Jacob cut) Magnesium Lacquered Globe Rotating in 30 sec on 2 Axes; Gravitational Tourbillon Cage Rotating on 3 Axes: 1st Axis: in 60sec, 2nd Axis: in 2.5min, 3rd Axis: Central Axe in 10min.
CASE: Diameter: 50mm; Thickness: 25mm; Material: Black Ceramic; Sapphire Apertures on Sides Case Back: Black Ceramic; Bows: Winding and Time-Setting via Black DLC Grade 5 Titanium lift-out rotating "bows" at case back; Skylayer Front Case: Aventurine; Crystal: Unique Domed Sapphire with Anti-Reflective Treatment; Water resistance: 30m (ISO 2281).
DIAL & HANDS: Dial: Skeletonized Titanium Dial, Hand- Engraved, Red Lacquered Indexes, Diamond Finish; Hands: Hand Finished Silver.
STRAP & CLASP: Strap: Alligator; Clasp: Black DLC Grade 5 Titanium Folding Buckle.
LIMITED EDITION: 18 pieces