ASTRONOMIA SKY

WITH THE "ASTRONOMIA SKY" JACOB & CO DID ONE OF OUR DREAMS : TO BE ABLE TO WEAR "THE SKY" ON A WRIST !

First, we want to underline the brillant idea to show the zodiac signs (the stars) and the months on the side of the internal case! It makes totally sense to add together those two complications and the execution is stunning.
Their speed is obviously different as the oval sky indication does a revolution in one day and the months ring in one year.

To set up the timepiece, they came with a simple solution. Each indication has its own setting.
- 2 bows on the case back: one to set the time + the other to wind the movement up
- 2 wheels on the side case: one linked to the months + the other for the oval sky indicator

The axis linked to the seconds is nice. They created a part that has a satellite shape... Quite a Fun touch!

The day/night indication is on the center of the timepiece dividing the earth in two parts. Making a revolution in 24 hours, the tinted half-domed represents the night and the other half, the day.

They choose an amazing Orange Sapphire of 1 carat (288 facets) to show a Red Moon! Adding even more magic to the concept. Their « savoir faire » or know-how is beautifully shown as they applied the JACOB CUT patented technique.

This is a WOW creation without any doubt !
The Time never looks the same and the Sidereal dimension is expressed in a Unique, Exclusive and Beautiful way.

Our Hats off & Applause, JACOB & CO !
 

Here are some details about all fonctions :

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 year

Oval sky indication: Showing the portion of the stars visible from the northern hemisphere, a full rotation in 1 sidereal day 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 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 RED MOON
Weight: 1 carat; 288 Facets Orange Sapphire Patented Jacob Cut Rotating on 2 axes:
- 1st Axis in 60 seconds
- 2nd Axis: Central Axe, travelling across the celestial vault in 20 minutes


LIMITED EDITION 18 pieces


Description:

Movement Manufacture JCAM11
Manual Winding
Frequency: 21’600 vib/h (3 Hz)
Power Reserve: 60-Hours
Components: 395
Jewels: 42

Functions:
Sidereal display - Month indication - Day and Night indication - Gravitational triple Axis Tourbillon - Orbital Second Indication - Hour & Minute indication

Case:
Diameter 47mm
Thickness 25mm
Material: 18K Rose Gold
Bows on the back: 18K Rose Gold lift-out Rotating “bows” for Winding or Time-Setting
Two Wheels on Caseback Sides for Synchronization of the Celestial Dial and Oval Sky Indicator
Crystal: Unique Domed Sapphire with Anti-Reflective Treatment

apJacob&co, ASTRONOMIA SKY