Description
Limited edition of 18 pieces.
Case:
Diameter: 47 mm.
Thickness: 25 mm.
Material: 18k rose gold.
Sapphire.
Case back: 18k rose gold.
Bows: 18k rose gold lift-out rotating “bows” for winding, time-setting.
Two wheels on the case back side for synchronization of the sidereal time: celestial dial and oval sky indicator.
Crystal: unique domed sapphire with anti-reflective treatment.
Water resistance 30 meters.
Dial and hands:
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.
Blued Jacob & co. designed hands.
Movement:
Calibre manufacture Jacob & co. manual winding JCAM41.
Diameter: 42 mm.
Height: 21.7 mm.
Components: 502.
Material: titanium.
Jewels: 67.
System: triple axis tourbillon.
Power reserve of 60 hours.
Frequency: 21’600 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 year 1.
1. One sidereal year is the time it takes the earth to orbit the sun.
2. Sidereal day= 23.5640916 hours, it is the time it takes the earth to rotate on its axis (relative to vernal equinox).
Oval sky indication: showing the portion of the stars visible from the northern hemisphere, a full rotation in 1 sidereal day 2 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 itself in 24 hours, inside a tinted half-domed sapphire, symbolizing night and day.
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.
Satellite and mars animation:
Rotating on 2 axes: 1st axis: in 60 seconds, 2nd axis: central axe, travelling across the celestial vault in 20 minutes.
Hour and minute indication.
Patented differential system rotating on a central axe, travelling across the celestial vault in 20 minutes.
The Jacob cut moon:
288 facets diamond patented Jacob cut (1ct.) rotating on itself in 60 seconds.
Strap and clasp:
Alligator leather.
18k rose gold folding buckle.
