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Brilliant Art Deco Arlequino


The Brilliant Deco is an exquisite timepiece mixing the best of high jewelry and horology. This sumptuous masterpiece has a noble composition of 18 carats gold and diamonds, a treasure chest for the hypnotic mechanical sensual beauty of the hand-finished openwork Jacob & Co. JCAM05 Caliber.


Jacob & Co. is one of the few brands that has the legitimacy to create high and fine jewelry, as well as high-end watches.

The diamond and gemstones industry is a closed society, and it is really a relationship business. Sourcing the very best diamonds and gemstones depends on reputation and personal connections, and thankfully Jacob & Co. has solid, decades-long relationships.

As a result, Jacob & Co. has access to the very best sources of diamonds and gemstones from all over the world. Many of the gem-set timepieces, like the Brilliant pieces, require meticulous care in the choosing of stones for quality, cut, clarity, and matching color. For a piece like this Brilliant Art Deco Arlequino, this can take many months or years, depending on the exact colors needed.

Jacob & Co. is also an expert in the setting of these stones, working with the very best gem setters in the industry.


Skeletonizing is an age-old tradition in watchmaking. The challenge is to remove enough material from the movement to make it nearly transparent, without impacting its performance, precision, or robustness.

Jacob & Co.'s watchmakers have been skeletonizing movements for decades, so they understand exactly where and how much to remove, and the result is a nearly see-through movement, set up to maximize the beauty of this little engine on the wrist.

Underlying all this beauty lies the legendary timepiece workmanship for which Jacob & Co. is famous. 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 version in the Brilliant Art Deco Arlequino presents this more than 225-year-old invention in a yet more spectacular way.

The one-minute tourbillon features a delicately decorated cage that encapsulates the balance wheel, hairspring, escape wheel and a number of other crucially important components. This open-worked cage not only features an elaborate web-pattern in its architecture, but allows 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 JCAM05 movement to keep accurate time throughout its 72-hour power reserve.

The movement uses sapphire crystal plates to make the movement even more transparent, and the bridges of this spectacular movement are set with 177 multi-colored sapphires and one brilliant-cut white diamond.


The 47mm 18K gold case, inner bezel, and crown of the Brilliant Skeleton Collection is invisibly-set with baguette-cut sapphires (the crown has a rose-cut sapphire on the top), while the inner bezel is set with baguette-cut white diamonds. Covering the front and back of the timepieces are anti-reflective sapphire crystals, putting the beautifully skeletonized movements on full display.


The beauty of skeletonized watches is that there are no dials - instead the highest quality sapphire crystals expose the details of the movement, including the wheels, gears, balance, bridges, and mainspring barrel. The leaf-shaped hands in the center, indicating the hours and minutes, float over the mechanical splendor.

a close up of a colorful wall


High Watchmaking and High Jewelry Ladies' timepieces

47mm 18K gold case

High-watchmaking manual-wind flying tourbillon movement, magnificently skeletonized

Movement bridges set with 177 multi-colored sapphires and one brilliant-cut white diamond

Meticulously sourced multi-colored baguette-cut sapphires, matched for cut, clarity, quality, and color.

Impeccable high-jewelry invisible-setting of the gemstones

Inner bezel set with baguette-cut white diamonds

Technical Specifications

Item Number: BT545.40.HX.BD.A

Movement: Exclusive Jacob & Co. Skeleton Manual Winding Caliber JCAM05; One-minute Flying Tourbillon; Diameter: 14½''' i.e. 32.60 mm; Height: 6mm; Components: 172; Power Reserve: 72-Hours; Frequency: 21'600 vib/h (3 Hz); Jewels: 19 Jewels; System: Anti-shock; Finishing: Open-worked Movement with Sapphires Plates and Finely set Bridges: 177 Brilliant-cut Multi-coloured Sapphires (≈ 1.92 ct.) and One Brilliant-cut Diamond (≈ 0.10 ct.) ; Hand-polished Angles.

Functions: Hours, Minutes.

Case: 47mm; Thickness: 14.35mm; Material: 18K Rose Gold; Invisibly Set with 127 Baguette Multi-coloured Sapphires (≈ 12.86 cts.) and 78 Baguette White Diamonds (≈ 5.62 cts.); Inside Upper Bezel with 48 Baguette White Diamonds (≈ 2.11 cts.); Crown Set with 11 Baguette Multi-coloured Sapphires (≈ 0.56 ct.), 3 Baguette White Diamonds (≈ 0.22 ct.) and One Rose Cut Yellow Sapphire (≈ 0.53 ct.); Crystal: Sapphire with Anti-reflective Treatment; Case Back: Sapphire Glass; Water resistance: 30m.

Hands: Leaf; Gun Blue.

Strap & Clasp: Alligator Strap; 18K Rose Gold Buckle Set with 15 Baguette Multi-coloured Sapphires (≈ 1.13 ct.) and 6 Baguette Diamonds (0.44 ct.).

Total Carat Weight: 331 Multi-coloured Sapphires (≈ 17 cts.), 136 White Diamonds (≈ 8.49 cts).

Warranty: 2 Years.

Limited Edition: Piece Unique.

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If you have any questions, queries or comments, please feel free to get in touch and our team will be delighted to help you.

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Flagship Boutique
/ Corporate Office

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

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