Mystery dials, timepieces where the indicators seem to be floating over the dial, are part of the grand history of watchmaking, going back about 200 years when it was first invented by a clockmaker who was also a practicing magician. Jacob & Co. has brought the mystery back with an innovative, contemporary high watchmaking and high jewelry twist.

The Mystery Tourbillon Arlequino 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 multicolored sapphires and the dial is set with hexagonal, overlapping multicolored sapphires and diamonds. The sophisticated and ground-breaking Mystery was more than one year in development.

Two triple-axis tourbillons positioned side-by-side in the center of the dial is a true innovative move for Jacob & Co. and a horological first for the watch industry. Most tourbillons are either set at the 12 or 6 o'clock position. This new placement provides an inspiring mechanical and visual effect for the watch while powering the dial and maintaining its accuracy. The twin complications turn simultaneously at 60 seconds for the first axis, and two minutes for the second and third axis.

In hindsight it seems logical that the mystery dial was invented by a watchmaker who was also a practicing magician. The 200-year-old complication in which the watch hands appear to float inside the dial while keeping accurate time appears magical. Jacob & Co.'s interpretation of the mystery dial involves colored gems that cover two discs, one for the minute and one for the hour. A diamond on each gem-covered disc is used to indicate the time - secretly, mysteriously.

The case of the Mystery Tourbillon is invisibly set with baguette hexagonal diamonds and the dial is set with hexagonal, overlapping diamonds. The 50 mm white gold case and lugs are invisibly set with 192 multicolored sapphires (14.47 total carats). The inner ring is invisibly set with 120 multicolored sapphires (7.14 total carats).

The minute disk is invisibly set with 119 multicolored sapphires and one white diamond, which indicates the exact minute (9.5 total carats).

The hour disk is invisibly set with 143 multicolored sapphires and one white diamond, which indicates the hours (8.18 total carats).

The 18k white gold bracelet is set with 396 baguette diamonds (37.97 total carats) and 50 baguette multicolored sapphires (6.43 total carats).