Jacob & Co. Billionaire III BL115.30.BD.AA.A30BD

Jacob & Co.'s Billionaire III is primarily a creation of high jewelry watchmaking, with its movement tailored to accommodate extensive gem-setting. Its defining characteristic lies in its structure, where the skeleton movement is supported by exceptionally thin bridges, arranged in a geometric pattern reminiscent of diamond facets. The bridges of caliber JCAM39, crafted from white gold, can accommodate the 57 baguette-cut white diamonds that adorn it, seamlessly blending with the case. Traditional watchmaking materials would have been unsuitable due to their hardness, risking distortion of the bridges during the setting process. Despite its remarkably thin construction, caliber JCAM39 is equipped with a high-end tourbillon, vertically aligned with a large barrel, enabling a remarkable 72-hour power reserve, a feat unmatched in a timepiece of this caliber.