The Jacob & Co. Self-Winding JCAA14 is a finely engineered automatic movement, showcasing 206 meticulously assembled components and 33 jewels for optimal precision and durability. Operating at a frequency of 28,800 vibrations per hour (4 Hz), it delivers smooth and reliable performance. A standout feature of the JCAA14 is its double timezone function, allowing independent adjustment of both hours and minutes, a testament to Jacob & Co.’s commitment to functional complexity. Additionally, a central small seconds mechanism enhances timekeeping precision. With a 42-hour power reserve, this movement maintains stable operation, ensuring longevity and efficiency. The JCAA14 exemplifies Jacob & Co.’s expertise in crafting high-performance calibres, blending innovation with mechanical mastery.