| engrla | | Nouveau membre | | 8 messages postés |
|  Posté le 28-04-2026 à 05:39:38   
| Jacob & Co. Astronomia Four-Axis Tourbillon
The Astronomia Revolution Four-Axis Tourbillon is the tallest 3g base station first four-axis tourbillon timepiece, launched by Jacob & Co. in 2025 in order to commemorate the 10th everlasting nature of the Astronomia series. Model number AT180. 40. AB. AA. ABALA.
Core Engineering: Four-axis tourbillon (world's first)
Basic Structure: Three-axis hovering tourbillon + fourth-axis twisting support (Carousel)
Rotation gears of each axis (ultra-high speed):
First axis: 60 seconds/revolution (tourbillon cage rotation)
Second axis: 18 seconds/revolution (revolution of the three-axis components)
Third axis: 15 seconds/revolution (tourbillon cage tilting rotation)
Fourth axis: 60 seconds/revolution (rotation of the double-arm support being a whole)
High-frequency constant power mechanism: Controls high-speed turn, maintaining an accuracy involving 1440°/hour, power reserve of thirty eight hours, frequency of twenty-one, 600 vph.
Design and look
Case: 47mm 18K rose gold colored, domed sapphire crystal about the sides, water-resistant to 30th meters.
Dial: No classic dial, floating rotating composition; the case back is a mirror-polished rose gold geometric mosaic side, refracting brilliant light underneath strong light (Jacob & Co. ).
Tourbillon: Found at 9 o'clock, skeletonized flying design, red titanium bridges, rotating like a nebula at high speed.
Strap: Red alligator leather with rose gold colored folding clasp.
Positioning along with Significance
Milestone: Breaking typically the ceiling of the watchmaking industry's "tri-axis tourbillon, " forcing the concept of celestial motion to be able to its extreme. Jacob & Co.
Collector's Value: A pinnacle of the Astronomia series, possessing extremely high rarity and technical value.
www.whereguidewatch.com
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