JACOB & CO. ASTRONOMIA TOURBILLON CLARITY LIMITED EDITION 50MM

REFERENCE : AT120.40.AD.SD.A
Brand: Jacob & Co.
Model:
Reference: AT120.40.AD.SD.A

Description

Limited edition of 9 pieces.

Case:
Diameter: 50 mm.
Thickness: 25.45 mm.
Material: 18k rose gold.
Sapphire with double anti-reflective treatment.
Case back: sapphire with double anti-reflective treatment gold metallisation.
Bows: winding and time-setting via 18k rose gold.
Lugs: 80 baguette white diamonds invisibly set (6.10 cts.).
Crystal: unique domed sapphire with anti-reflective treatment.
Water resistance: 30 meters.

Dial and hands:
Titanium dial, polished and angled, lacquered indexes.
Hand-finished blue.

Movement:
Manufacture Jacob & co. manual winding JCAM12.
Diameter: 40 mm.
Height: 17.15 mm.
Material: titanium sapphire barrel bridge.
Components: 365.
Power reserve: 60- hours.
Frequency: 21.600 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, one sapphire bridge.
Polished screws.
Barrel: circular graining.
Pinions: conical pinions.
4 mechanical ball-bearing devices.
Flat balance spring.

Functions:
Hours, minutes dial rotating in 10 minutes on the central axis, patented differential gears system.
Spherical 288 facets Jacob-cut white diamond, weight: 1 carat, rotating in 30 seconds on 2 axes.
Magnesium lacquered globe rotating in 30 seconds on 2 axes.
Gravitational tourbillon cage rotating on 3 axes: 1st axis: in 60 seconds, 2nd axis: in 2.5 minutes, 3rd axis: central axe in 10 minutes.

Strap and clasp:
Alligator.
18k rose gold folding buckle.

Total carat weight: 80 baguette white diamonds ( 6.10 ct.).

Brand

Jacob & Co.

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