JACOB & CO. ASTRONOMIA TOURBILLON LIMITED EDITION 50MM

REFERENCE : AT100.95.KK.SD.B
Brand:Jacob & Co.
Reference:AT100.95.KK.SD.B

Description

Limited edition of 18 pieces.

CASE
Material : black ceramic.
Size : 50 mm.
Thickness : 25 mm.
Sapphire apertures on sides case back : black ceramic.
Bows : winding and time-setting via black DLC grade 5 titanium lift-out rotating “bows” at case back.
Skylayer front case : aventurine.
Crystal : unique domed sapphire with anti-reflective treatment.
Water resistance : 30 meters – 100 feet.

DIAL
Titanium dial.
The Roman numerals on the skeletonized dial are hand-engraved and filled with black lacquer.
The hand-finished hour and minute hands turn over top.

STRAP
Black Louisiana alligator leather.
Clasp : black DLC grade 5 titanium folding buckle.

FUNCTIONS
Hours, minutes dial rotating in 10 min on the central axis, patented differential gears system.
288 facets spherical diamond rotating in 30 sec on 2 axes magnesium lacquered globe rotating in 30 sec on 2 axes.
Gravitational tourbillon cage rotating on 3 axes :
1st axis : in 60 sec,
2nd axis : in 2.5 min,
3rd axis : central axe in 10 min.

MOVEMENT
Exclusive manufacture Jacob and Co.
Manual winding.
Diameter : 40 mm.
Height : 17.15 mm.
Components : 365.
Jewels : 42.
Material : titanium.
System : gravitational triple axis tourbillon.

Brand

Jacob & Co.

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