The Jacob & Co. Billionaire Double Tourbillon (Ref. BL140.30.BD.AA.A30BD) is a masterpiece of haute horlogerie, featuring a 54 x 40 mm 18K White Gold case adorned with 30 meters of water resistance. Its skeletonized dial showcases a dual tourbillon movement, offering a mesmerizing view of its intricate mechanics. This timepiece is a testament to Jacob & Co.'s commitment to exceptional craftsmanship and innovative design.