Astronomia Sky

Market Cross Jewellers - Authorised Retailer of Jacob & Co.

Product Reference: AT110.60.AA.WD.A

TECHNICAL SPECIFICATIONS

Movement: Manufacture Jacob&Co. Manual Winding JCAM11; Diameter:
40mm; Height: 17.15mm; Components: 395; Material: Titanium; Jewels:
42; System: Triple Axis Gravitational Tourbillon; Finishing: Plate and Bridges:
Hand Angled and Polished, Flank Draw, Circular Graining, Polished Sink;
Polished Screws; Power Reserve: 60-Hours; Frequency: 21600 vib/h (3
Hz).

Functions:
SIDEREAL DISPLAY
Celestial Dial covering the internal surface of the inside case, representing
the celestial vault through zodiac signs
A full rotation in 1 sidereal year1 counter clockwise.
Oval sky indication: Showing the portion of the stars visible from the
northern hemisphere, a full rotation clockwise in 1 sidereal day2 above the
celestial vault.
Month indication: 12 months on sides of the celestial dial: indication index
at 6 oclock.

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;

THE JACOB CUT MOON
Weight: 1 carat; 288 Facets White Diamond Patented Jacob Cut
Rotating on 2 axes:
1st Axis in 60 seconds.
2nd Axis: Central Axe, travelling across the celestial vault in 20 minutes.
Case: 47mm; Thickness: 25mm; Material: Platinum 950; Sapphire
Apertures on Sides; Case Back: Platinum 950; Bows: Platinum 950 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 (ISO 2281).

Dial: 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:
Hand Finished Blue.

Strap & Clasp: Alligator; Platinum 950 Folding Buckle .

Limited Edition: 18 Pieces; Individually Numbered Pieces