- Limited edition of 9 pieces.
- Case:Diameter: 50 mm.
- Thickness: 25 mm.
- 120 baguettes white diamonds invisibly set ( 9.13 cts. ).
- Sapphire apertures on sides.
- 257 baguette diamonds invisibly set ( 8.27 cts. ).
- Crystal: unique domed sapphire with anti-reflective treatment.
- Water proof
- Dial and hands:Titanium dial, hand-angled and polished, engraved and lacquered indexes.
- Blued Jacob & Co. designed hands.
- Movement: Calibre exclusive Jacob & Co. manual winding JCAM40.Diameter: 41.75 mm.
- Height: 17.15 mm.
- Components: 339.Power reserve: 35 hours.
- Frequency: 21'600 vib/h (3 Hz).
- Jewels: 42.Finishing: plate and bridges: hand angled and polished, flank draw, circular graining, polished sink.
- Polished screws.
- Barrel: circular graining.
- Pinions: conical pinions.
- 4 mechanical ball-bearing devices.
- Flat balance spring.
- Functions:Hours, minutes dial (patented differential gears system allows to keep the 12/6 o'clock position).
- Tourbillon cage rotating :1st axis: in 60 sec.
- 2nd axis: in 1min 15 sec.
- Full revolution around central axis in 5 minutes.
- 288 facets spherical exclusive Jacob cut diamond (1 ct. ) rotating on itself in 15 sec.
- Magnesium lacquered globe rotating on itself in 15 secStrap and clasp: Alligator leather.
Jacob & Co. Astronomia Tourbillon Five Minute Limited Edition 50mm
| النموذج | علم الفلك |
|---|---|
| تاريخ الإصدار | 2024 |
| المواد: | روز جولد |
| الحجم | قطر 50 مم |
المراجعات
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