The Astronomia Flawless watch by Jacob & Co. continues to impress with its multifaceted meaning behind the new Astronomia’s name.
“Flawless” not only refers to the watch’s impeccable appearance, but it is also the term for the highest grade of diamond clarity according to the Gemological Institute of America’s diamond grading scale. For a diamond to be declared flawless, no inclusions or blemishes should be visible under 10x magnification. Flawless is therefore a fitting benchmark for Jacob & Co.’s evolutionary interpretation of the Astronomia collection’s signature sapphire case.
Jacob Arabo, the founder of Jacob & Co. masterfully blends the intricate worlds of high jewelry and high watchmaking in the Astronomia Flawless. In its new avatar in 2019, this horological masterpiece boasts a flawless 2.88 ct. diamond on top of the amazing Astronomia movement.
The large sapphire crystal case has been a consistent design element of Jacob & Co.’s Astronomia collection since the introduction of the first Astronomia in 2014. The transparency of the case allows the movement of the gravitational triple axis tourbillon to be clearly visible from multiple angles. In the spirit of constant improvement, the Astronomia Flawless elevates the level of transparency with the use of the Astronomia Flawless’s monoblock sapphire crystal case. The sophisticated craftsmanship of the monoblock sapphire crystal creates the illusion that the complications within the case are floating effortlessly in midair.
To achieve this appearance, a number of the collection’s components that were previously produced in precious metal are instead made in sapphire crystal. These changes have added a considerable layer of complexity to the new watch, as the production of the case middle alone requires 15 individual steps that account for around 326 hours of work, while the case back requires around 297 hours of work. Add to this the 288 hours required for the production of the domed crystal evident in all Astronomia models and you can see why this year’s Astronomia Flawless is a unique piece.
At the heart of the Astronomia Flawless lies the superior timepiece craftsmanship for which Jacob & Co. is renowned. A triple axis tourbillon counteracts the eﬀects of gravitation on the caliber’s mobile components as the tourbillon cage rotates in 60 seconds and completes a revolution over itself in 2.5 minutes, while the entire tourbillon covers a full revolution around the watch’s central axis in 10 minutes.
Both the 1-carat, 288-facet Jacob Cut® diamond and the magnesium-lacquered blue globe rotate on themselves in 30 seconds, and travel with the tourbillon and the time display around the dial in 10 minutes. Jacob & Co.’s patented Differential Gears System allows the time display to maintain the 12/6 o’clock position regardless of where it is in the rotation.
Model: Astronomia Flawless
Caliber: Manufacture Jacob&Co. Manual Winding JCAM24
Diameter: 40mm; Height: 17.15mm
Material: Titanium; Rose Gold Finishes; Sapphire Barrel Bridge
Components: 367; Functions: Hours and Minutes
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
• On Top: Diamond (2.88 ct.)
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, One Sapphire Bridge; Polished
Screws; Barrel: Circular Graining; Pinions: Conical Pinions; 4 Mechanical
Ball Bearing Devices; Flat Balance Spring.
Diameter: 50mm; Height: 25.45mm
Material: Sapphire with Double Anti-reflective Treatment
Case Back: Sapphire with Double Anti-reflective Treatment Silver Metallization
Bows: Winding and Time-Setting via 18K Rose Gold; Crystal: Unique Domed Sapphire with Double
Water resistance: 30m
Titanium; Hands: Blue Finish
Alligator; Clasp: Titanium Folding Buckle