DESCRIPTION:
For most of our time on Earth, humans thought the world was flat. In the same vein, since the tourbillon's introduction in 1795, everyone presumed this mesmerizing complication could only be flat and one-dimensional.
In 2014, Jacob & Co. transformed the tourbillon into a vertical, 3D, moving structure on display within a sapphire crystal and precious metal case that puts everything on display. When it was first introduced, the Astronomia Tourbillon's four-satellite structure turned constantly around the dial, making one rotation in 20 minutes. Several years later, never one to leave well enough alone, Jacob & Co. increased the revolutions to 10 minutes.
- Four-satellite structure rotating around the dial in 5 minutes.
- Triple-axis tourbillon.
- One-carat 288-facet Jacob-Cut diamond (turning in 15 seconds).
- Lacquered magnesium globe (turning in 15 seconds)
- Time display with patented differential gear system.
- Sapphire crystal and 18K rose gold case invisibly set with diamonds.
- - Lugs: 80 baguette-cut white diamonds ( 6.10ct)
- - Bezel: 40 baguette-cut white diamonds ( 3.03ct)
- - Base dial: 257 baguette-cut white diamonds ( 8.27ct)
- - Clasp: 18 baguette-cut white diamonds ( 1.4ct)
- No crown design, setting and winding accomplished through lift-out bows on the case back.
TECHNICAL SPECIFICATIONS
MOVEMENT: Caliber: Exclusive Jacob&Co. Manual Winding JCAM40; Diameter: 41.75mm; Height: 17.15mm; Components: 339; Power Reserve: 35-Hours; Frequency: 21'600 vib/h (3 Hz); Jewels: 42; Finishing: Plate and Bridges: Hand Angled and Polished, Flank Draw, Circular Graining, Polished Sink; Polished Screws; Barrel: Circular Graining; Pinions: Conical Pinions; 4 Mechanical Ball Bearing Devices; Flat Balance Spring.
FUNCTIONS: Hours, Minutes Dial (Patented Differential Gears System allows to keep the 12/6 O'clock position);
Tourbillon cage rotating :
• 1st Axis: in 60sec,
• 2nd Axis: in 1min 15sec
• Full revolution around Central Axis in 5 minutes
288 Facets Spherical Exclusive Jacob Cut Diamond (1 ct.) rotating on itself in 15sec.; Magnesium Lacquered Globe Rotating on itself in 15sec.
CASE: Diameter: 50mm; Thickness: 25mm; Material: 18K Rose Gold; 120 Baguettes White Diamonds Invisibly Set ( 9.13 cts.); Sapphire Apertures on Sides; Case Back: 18K Rose Gold; Bows: Winding and Time-Setting via 18K Rose Gold lift-out rotating "bows" at case back; Diamond Layer Front Case: 18K Rose Gold; 257 Baguette Diamonds invisibly set ( 8.27 cts.); Crystal: Unique Domed Sapphire with Anti- reflective Treatment; Water resistance: 30m (3atm).
DIAL & HANDS: Dial: Titanium Dial, Hand-angled and Polished, Engraved and Lacquered Indexes; Hands: Blued Jacob&Co designed hands.
STRAP & CLASP: Strap: Alligator; Clasp: 18K Rose Gold Folding Buckle invisibly set with 18 Baguettes White Diamonds. (~1.4 ct.).
LIMITED EDITION: 9 pieces