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Astronomia Tourbillon Baguette Arlequino
(RETAIL PRICE: $1,000,000)

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Multi-Colored. The spectrum of color in the Astronomia Tourbillon Baguette Arlequino makes this timepiece stand out from everything else out there. ⠀

The 281 baguette-cut multicolored sapphires on the base dial provide a colorful background to the four-satellite structure turning above. ⠀

The different colored sapphires play hide-and-seek as the triple-axis tourbillon, the 288-facet Jacob-cut diamond, the time display and the magenium globe make their revolution around the dial in 10 minutes.


The four arms of the Astronomia Tourbillon carry the triple-axis tourbillon timekeeping organ of the watch, the magnesium globe in blue lacquer with white gold continents for a spectacular representation of Planet Earth, the exclusive Jacob-Cut® 1-carat diamond with 288 facets, and the skeletonized time display. This four-arm assembly completes a rotation around the center of the watch and over the spectacular backdrop in 20 minutes.

Another astounding feature of the Astronomia Tourbillon is how each pair of opposing arms are perfectly calculated counterweights of one another - a testament to peerless materials engineering and watch movement design. By having equal weights on these opposing arms, its axles are relieved from strain and increased pull, as the movement takes up different orientations in space.


The tourbillon is widely considered the ultimate complication, as it turns and spins to counter the effects of gravity on the precision of the movement. For the Astronomia Tourbillon Baguette Arlequino, Jacob & Co. has taken the tourbillon one step farther, introducing additional axes in which the tourbillon turns. For the Astronomia Tourbillon Baguette Arlequino, the tourbillon is triple-axis - turning in two axes: one in 60 seconds and the second in 1 minute and 15 seconds, and the third going around the dial in an astonishing 5 minutes.

Astronomia Tourbillon Baguette Arlequino Video

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Serving as a spectacular backdrop for the satellites turning above is the base dial completely invisibly-set with 281 baguette-cut multi-color sapphires (≈12.65 ctw). This makes for a unique coming together of gem-cutting and gem-setting prowess and ultra-high-end watchmaking, as can only ever be experienced in a Jacob & Co creation.


Jacob & Co. has been on the forefront of using precious stones since its founding in 1986, and has developed a number of special cuts and setting techniques. For the Astronomia Tourbillon, the brand developed the 288-facet Jacob-cut diamond. This special cut can be accomplished by only a select few gem cutters, and the rough stone typically starts out double the size of the finished diamond. The facets have to be incredibly precise so the diamond is perfectly symmetrical and round. In the Astronomia Tourbillon, the one carat Jacob-cut diamond rotates on itself in 15 seconds.


The globe is made of blue-lacquered magnesium with white gold continents to ensure consistency in weight, as all four satellites have to weigh exactly the same. The globe rotates on itself in 30 seconds, while traveling around the dial in 10 minutes.

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The Astronomia Tourbillon's case measures 50 millimeters in diameter and 25 millimeters thick between the highest point of its specially curved front sapphire crystal and the lowest point of its case. Crafted from 18K Rose Gold or 18K White Gold, every variation features four sapphire crystal windows installed throughout the periphery of the case, allowing for unhindered viewing of the spectacular caliber and intricately-set gemstones inside.


The time display sub-dial of the Astronomia Tourbillon is driven through an infinitesimal differential system that allows it to always remain levelled and legible as it rotates together with the movement's four-armed platform. 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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Iconic gravitational triple-axis tourbillon

50mm 18K rose gold and sapphire crystal case, with sapphire crystal back

All four satellites constantly turn around the dial in 10 minutes

288-facet Jacob-cut diamond turning in 30 seconds

Magnesium globe turning in 30 seconds

Unique differential always keeps the time display in the correct 12/6 orientation, no matter where it is the rotation

Domed and curved, anti-reflective sapphire crystal

Unique crown-less design; winding and setting lift-out bows on the case back

The lugs of the 18K white gold and sapphire-case are invisibly hand-set with 80 baguette-cut white diamonds (≈ 6.10 ct.

The base dial is invisibly-set with 281 multi-color sapphires (≈12.65 ctw)

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Technical Specifications


MOVEMENT: Caliber: Manufacture Jacob&Co. Manual Winding JCAM18; Diameter: 40mm; Height: 17.15mm; Components: 365; Functions: Hours and Minutes; Power Reserve: 60-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

SYSTEM: Vertical Movement with 4 Arms, Full Revolution in 10 min around a Central Axis

• Gravitational Triple Axis Tourbillon, 1st Cage rotating in 60 sec and 2nd Cage in 2.5 min

• 1 Carat Exclusive Jacob cut® Diamond: 288 Facets, rotating on itself in 30 sec

• Magnesium Blue Lacquered Globe, rotating on itself in 30 sec

• Hours and Minutes Dial, Patented Differential Gears System℗ allows to keep the 12/6 O'clock position.

CASE: Diameter: 50mm; Thickness: 25mm; Material: 18K Rose Gold; Sapphire Apertures on Sides; Case Back: 18K Rose Gold; Bows: Winding and Time-Setting via 18K Rose Gold lift-out rotating "bows" at case back; Layer Front Case: 18K Rose Gold; 281 Baguette Multicolored Sapphires Invisibly Set (≈ 12.65ct.); Lugs: 80 Baguette White Diamonds Invisibly Set (≈ 6.10 ct.); Crystal: Unique Domed Sapphire with Anti-reflective Treatment; Water resistance: 30m (3atm).

DIAL & HANDS: Dial: Titanium Dial, Polished and angled, Lacquered Indexes; Hands: Blued Jacob & Co designed hands.

STRAP & CLASP: Strap: Alligator; Clasp: 18K Rose Gold Folding Buckle invisibly set with 18 Baguette White Diamonds (≈ 1.40 ct.).

LIMITED EDITION: Unique piece.

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Flagship Boutique
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48 East 57 Street
New York, NY 10022
+1 (212) 719-5887
Jacob & Co

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