Astronomia Tourbillon Black Gold

Market Cross Jewellers - Authorised Retailer of Jacob & Co.

Product Reference: AT100.31.AC.SD.A

TECHNICAL SPECIFICATIONS

Movement: Manufacture Jacob & Co. Manual Winding JCAM10;
Diameter: 40mm; Height: 17.15mm; Components: 365; Material:
Titanium; Power Reserve: 60-Hours; Frequency: 21600 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 20 min on the
Central Axis, Patented Differential Gears System; Faceted
Spherical Diamond Rotating in 60 sec on 2 Axes (Weight: 1 carat;
288 Patented Facets Exclusive Jacob Cut) Aluminum Lacquered
Globe Rotating in 60 sec on 2 Axes; Gravitational Tourbillon Cage
Rotating on 3 Axes: 1st Axis: in 60sec, 2nd Axis: in 5min, 3rd
Axis: Central Axe in 20min.

Case: 50mm; Thickness: 25mm; Material: 18K White Gold with
Black DLC Treatment; Sapphire Apertures on Sides Case Back:
18K White Gold with Black DLC Treatment; Bows: Winding and
Time-Setting via 18K White Gold with Black DLC Treatment lift-out
rotating bows at case back; Skylayer Front Case: Aventurine
and 18K White Gold with Black DLC Treatment; Crystal: Unique
Domed Sapphire with Anti-reflective Treatment; Water resistance:
30m (ISO 2281).

Dial & Hands: Magnesium Dial, Hand- Engraved, Lacquered
Indexes, Diamond Finish; Hands: Hand Finished Gun Blue.

Strap & Buckle: Alligator; Clasp: 18K White Gold with Black DLC
Treatment Folding Buckle.

Limited Edition: 18 Pieces; Individually Numbered Pieces.