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Astronomia Solar Baguette

Astronomia Solar Baguette


The Astronomia is the epitome of 21st century haute horlogerie and a globally recognized symbol of Jacob & Co watchmaking expertise. A world-first both in the boldness of its unprecedented concept and its entirely mechanical construction, the Astronomia has gone beyond impressive horological achievements and been regarded as an outstanding multidisciplinary engineering achievement. Re-engineered from the ground up, the Astronomia Solar is the most compact in our peerless collection of Astronomia calibers.

Despite its close-packed design, the Astronomia Solar Baguette features the precious center of our Solar System as a Jacob-Cut®, 288-facet gemstone sphere, placed on the rotating platform of the Astronomia Solar caliber. Its three main arms carry the differential-driven, self-leveling time display, the magnesium globe in hand-painted blue for a spectacular representation of Planet Earth, and the one-minute flying tourbillon regulating organ. Serving as their backdrop is the Aventurine Skylayer with seven cabochon-cut precious stones, representing the planets of our Solar System.

Exclusive Astronomia Caliber

The Exclusive JCAM19 caliber of the Astronomia Solar Baguette stands out from an exquisite range of Astronomia calibers by being the most compact reiteration of the original, allowing for yet smaller case dimensions as well as redesigned proportions. Composed of 447 components, all finished to the highest standards of haute horlogerie, the Astronomia Solar Baguette features two rotating platforms. One comprises the three main arms of the caliber, while the other is the Aventurine Skylayer that acts as their spectacular, rotating backdrop.

The rotating platform of the JCAM19 caliber completes a rotation around the center of the watch in under 10 minutes, while simultaneously driving the Aventurine Skylayer in a counterclockwise direction to add further animation and complexity to this unique take on celestial watchmaking.
Astronomia Solar Baguette Skylayer

Rotating Gemstone Planet Display & Aventurine Skylayer

The Astronomia Solar Baguette brings a host of beautifully executed, astronomically inspired details to the world of Astronomia. A view on our home planet can be experienced by a hand-painted blue globe, crafted from lightweight magnesium. A Citrine shaped with the exclusive Jacob-Cut® and its 288 facets complement the cutting-edge watchmaking feats of the Astronomia Solar Baguette. Serving as a spectacular backdrop for these displays is the Aventurine Skylayer disc that rotates counterclockwise - against the rotation of the Astronomia's three-arm movement platform.

This Skylayer is set with seven cabochon-cut half-sphere planets: White Granite for Mercury, Rhodonite for Venus, Red Jasper for Mars, Pietersite for Jupiter, Tiger Eye for Saturn with 18K Rose Gold applique for the rings, Blue Alcite for Uranus and Lapis Lazuli for Neptune. This unique constellation of gem-setting prowess and ultra-high-end watchmaking can only ever be experienced in a Jacob & Co creation.

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Astronomia Solar Baguette Video

Astronomia Solar Baguette Flying Tourbillon

Flying Tourbillon

Whereas the tourbillon was originally invented to be a single-axis, rotating cage secured from above as well as below to carry the regulating organ of a mechanical pocket watch for improved timekeeping performance, the Astronomia Solar Baguette presents this 224-year-old invention in a yet more spectacular way.

The one-minute flying tourbillon of the Astronomia Solar Baguette features a delicately decorated cage that encapsulates the balance wheel, hairspring, escape wheel and a number of other crucially important components. This openworked, Rose Gold cage not only features the J&Co logo in its architecture, but is only secured from underneath, allowing for an unobstructed and full view at the ultimate refinement of its detailing and operation. It is a constellation of superbly finished components that, when assembled and fine-tuned expertly, allows the JCAM19 to keep accurate time throughout its 48-hour power reserve.

Astronomia Solar Baguette Case & Crystal

Case & Crystal

The clean, yet powerful lines of the Astronomia Solar Baguette's case are further amplified by 52 baguette-cut white diamonds, tracing the uniquely complex lugs and highlighting their hollowed-out structure. The case measures 44.5 millimeters in diameter and 21 millimeters thick between the highest point of its specially curved front sapphire crystal and the lowest point of its case.

Its 18K Rose Gold case holds a single-piece sapphire crystal window around its periphery, allowing for unhindered viewing of the spectacular caliber and gemstones inside. One's focus on the universe that lives inside the Astronomia Solar Baguette is further assisted by the openworked lugs - a minute, yet important detail that drives ones vision towards the center of the timepiece.

Astronomia Solar Baguette Dial & Hands

Dial & Hands

The time display sub-dial of the Astronomia Solar Baguette is driven through an infinitesimal differential system that allows it to always remain levelled and hence perfectly legible, even as the movement's four-armed platform performs its continuous, 10-minute orbit. The Roman numerals on the skeletonized dial are hand-engraved and filled with black lacquer, while the hand-finished hands appear in gun blue metallic.

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The Jacob & Co. flying tourbillon, time display, and hand-painted magnesium globe make one full revolution of the dial in 10 minutes, rotating clockwise

The Sun is represented by a yellow 288-facet Jacob-cut Sapphire (≈1.5 cts)

The aventurine Skylayer base dial holding the eight planets makes one revolution counter-clockwise, in 10 minutes

The lugs and the case band of the 18K rose gold and sapphire-case are invisibly hand-set with baguette-cut white diamonds.

The eight planets are represented by half spheres of semi-precious stones: White Granite for Mercury, Rhodonite for Venus, Red Jasper for Mars, Pietersite for Jupiter, Tiger Eye for Saturn, Blue Calcite for Saturn and Lapis Lazuli for Neptune

With the upper assembly turning clockwise in 10 minutes and the aventurine Skylayer base holding the planets turning clockwise in 10 minutes, the Astronomia Solar Baguette never looks the same way twice

Technical Specifications

Item Number: AS800.40.AP.YK.A

MOVEMENT: Exclusive Manufacture Jacob & Co. Manual Winding JCAM19; Diameter: 34.55mm; Height: 16.50mm (11.70mm excluding Yellow Sapphire); Components: 447; Material: Titanium; Power Reserve: 48 Hours; Frequency: 28,800 vib/h (4 Hz); Jewels: 43; System: Gravitational Double Axis Tourbillon; Finishing: Plate and Bridges: Sand-blasted and Angled; Geartrain: Circular Graining, Polished Sink; Polished Screws; Barrel: Circular Graining; Flat Balance Spring.

FUNCTIONS: Hours, Minutes Dial Rotating in 10 min on the Central Axis, Patented Differential Gears System; Rose Gold and Blue Lacquered Globe Rotating in 60sec on 2 Axes; Flying Tourbillon Cage in 60 seconds; Yellow Sapphire Jacob cut® (288 facets; ≈ 1.5cts) on top of the movement; Entire movementrotates clockwise 360 degrees in 10 minutes; Aventurine base rotates counter-clockwise 360 degrees in 10 minutes, carrying 7 Planets made of Cabochon cut Precious Stones Half- Spheres: White Granite for Mercury, Rhodonite for Venus, Red Jasper for Mars, Pietersite for Jupiter, Tiger Eye for Saturn (18K Rose Gold applique for the rings), Blue Alcite for Uranusand Lapis Lazuli for Neptune.

CASE: Diameter: 44.5mm; Thickness: 21mm; Material: 18K Rose Gold set with 52 Baguette White Diamonds; Case Back: 18K Rose Gold; Case Band: Single-piece Sapphire Crystal;Bows: Winding and Time-Setting via two 18K Rose Gold bows; Layer Front Case: Aventurinewith 7 Cabochon cut Precious Stones rotating counter-clockwise in 10min;

Crystal: Unique Domed Sapphire with double Anti-reflective Treatment;Water resistance: 30m (ISO 2281).

Dial & HANDS: Titanium, Hand Angled and Polished, Lacquered Indexes; Hands: Bluedsteel.

STRAP & CLASP: Alligator; Buckle: 18K Rose Gold Folding clasp.



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