This exceptional timepiece represents a significant horological unlimited creativity from the legendary Daniel Roth atelier. According to research, this timepiece is possibly a unique prototype (Prototype 01), featuring a tourbillon regulator and split second (rattrapante) chronograph mechanism. Distinguished by its round-shaped stainless steel case—potentially the only such example ever produced by the brand—the watch maintains a connection to Daniel Roth’s signature aesthetic through its two-tone black and white dial with distinctive elliptical elements. The 30-minute split second chronograph function and tourbillon demonstrate extraordinary technical prowess, while the sapphire crystal caseback offers a captivating view of the meticulously finished movement architecture. This prototype represents the innovative leading spirit of independent watchmaking, embodying both technical innovation and artistic vision from one of horology’s most revered modern masters.