The Twin Turbo Furious Sapphire elevates one of Jacob & Co.’s most celebrated grand complications by housing its extraordinary movement within a meticulously machined sapphire crystal case. The remarkable transparency removes visual barriers between the wearer and the calibre, allowing every rotating tourbillon, chronograph component and striking mechanism to be admired from virtually every angle. Producing a sapphire case of this complexity demands exceptional precision and hundreds of hours of machining, polishing and finishing, making each example an extraordinary achievement in both engineering and craftsmanship.

Its hand-wound manufacture movement integrates twin triple-axis tourbillons, a monopusher chronograph, a decimal minute repeater and a mechanical reference time display within a highly sophisticated architecture. Every bridge is individually hand-finished, every gear train precisely adjusted and every mechanical component assembled to the highest standards of Swiss haute horlogerie. Produced in extremely limited quantities, the Twin Turbo Furious Sapphire represents one of the most technically advanced and visually captivating timepieces in Jacob & Co.’s Grand Complication collection.