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The Mystery Tourbillon Ruby


Mystery watches, timepieces where the time indications seem to be floating over the dial, are part of the grand history of watchmaking, going back more than 100 years. It should come as no surprise high watchmaking and diamond jewelry house Jacob & Co. has brought the mystery back with a contemporary high watchmaking and high jewelry twist.

The Mystery Tourbillon combines high watchmaking, a world first with two linked central, back-to-back triple axis tourbillons, with high jewelry, as the case is invisibly set with baguette hexagonal diamonds and the dial is set with hexagonal, "overlapping" diamonds. The sophisticated and ground-breaking Mystery was more than one year in development.


Powering this incredible timepiece are two of Jacob & Co.'s iconic triple-axis tourbillons, placed back-to-back. The first axis makes a full revolution in 60 seconds, while the second and third axes make a full revolution in two minutes. The power reserve for this high watchmaking movement is 60 hours.


The two mystery disks turn to indicate the time, rotating around the twin triple axis tourbillons, linked by a single differential, set into the center of the watch. This is a unique positioning, as most tourbillons are either set at the twelve or six o'clock position. This is the first time that Jacob & Co. has placed its two incredible triple axis tourbillon movements in the center of the watch, where they turn on three axes: the first axis in 60 seconds, and the second and third axes in two minutes.

a cake sitting on top of a table

The Mystery Tourbillon Ruby Video


The case of the Mystery Tourbillon is invisibly set with baguette hexagonal diamonds and the dial is set with hexagonal, "overlapping" diamonds. The minute disk is set with 119 white diamonds (≈ 6.80 ct.) and one ruby (≈ 0.18ct.) to indicate the exact minute.

The hour disk is also set with 119 white diamonds (≈ 7.93ct.) and one red ruby (≈ 0.28ct.) to show the hours.

The outer ring is set with 108 white diamonds (≈ 4.56ct.) and 12 Tsavorites (≈ 1.49ct.) for the hour markers.

a cake sitting on top of a table


The 50mm 18K white gold case is completely paved, and there is no crown. The watch is set and wound via two bows in the case back.

a cake sitting on top of a table

The Mystery Tourbillon Ruby Tutorial Video


Two Swiss Made triple-axis tourbillons placed back-to-back in the exact center of the timepiece.

Two diamond-set disks with single Diamond to indicate the time (no hands).

50mm 18K White Gold case.

Double anti-reflective domed sapphire crystal.

60 hours of power reserve.

No crown, timepiece set and wound via two lift-out 18K white gold bows on the back of the case.

Technical Specifications


MOVEMENT: Manufacture Jacob&Co. Manual Winding JCAM32; Diameter: 42.80mm; Height: 15mm; Components: 430; Jewels: 68; Power Reserve: 60-Hours

Shock Protection System: Incabloc; Frequency: 21'600 vib/h (3 Hz); Decoration: 2 rubies on the tourbillon; Finishing: Shotblasted brass; Screws, Bridges and plates: Mirror polished; Barrels: Circular Graining

FUNCTIONS: Differential Double Triple Axis Tourbillon Cage:

• 1st Axis: one turn in 1min

• 2nd Axis: one turn in 2min

• 3rd Axis: one turn in 2min

CASE: Diameter: 50mm; Thickness: 22.75mm; Material: 18K White Gold; Caseback: 18K White Gold; Bows: Winding and Time-Setting via 18K White Gold lift-out rotating "bows" at caseback; Case & Lugs: 18K White Gold; 192 Rubies (≈ 12.58 cts); Inner Ring: 120 Rubies (≈ 7.50 cts); Crystal: Domed Sapphire with Anti-reflective Treatment; Water resistance: 30m (3atm).

DIAL & HANDS: Minutes Ring: 119 Rubies (≈ 10.10 cts); 1 Diamond (≈ 0.18 cts); Hours Ring: 143 Rubies (≈ 8.41 cts); 1 Diamond (≈ 0.28 cts).

STRAP & CLASP: Strap: Alligator; Clasp: 18K White Gold Folding Buckle set with 18 Baguette Rubies (≈ 2.46 cts).

TOTAL CARAT WEIGHT: ≈ 41.51 cts.


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

Contact Us

Flagship Boutique
/ Corporate Office

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

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