The Astronomia Maestro expands the celebrated Astronomia concept by introducing one of watchmaking’s most prestigious acoustic complications—the Westminster minute repeater. At the press of a slide, the watch performs a rich sequence of four-note Westminster chimes, transforming the passage of time into an unforgettable musical performance. Suspended beneath the signature sapphire dome, the rotating movement creates a spectacular visual stage where sound, motion and mechanical precision operate in perfect harmony, elevating the Astronomia collection to an entirely new level of horological complexity.

Its hand-wound manufacture calibre combines an intricate minute repeater mechanism with the collection’s signature flying tourbillon and continuously rotating movement platform. Hundreds of meticulously finished components work together to produce clear, resonant chimes while maintaining exceptional chronometric performance. Every bridge, hammer, gong and polished surface is individually decorated by master watchmakers, resulting in a masterpiece that represents the pinnacle of Jacob & Co.’s technical innovation, artistic creativity and uncompromising commitment to haute horlogerie.