Rolex 1120

The Rolex 1120 is an automatic mechanical movement manufactured by Rolex, designed to power various timepieces within its collection. This caliber integrates a series of technical specifications that define its operational characteristics and performance. As an automatic movement, the 1120 features a self-winding mechanism. This means that the mainspring is wound automatically by the natural motion of the wearer's wrist, eliminating the need for manual winding through the crown during regular wear. This design provides convenience for the user, ensuring the watch remains powered as long as it is worn consistently. The movement incorporates 23 jewels, which are synthetic rubies strategically placed at points of high friction within the gear train. These jewels serve to reduce wear on metal components, minimize friction, and enhance the longevity and stability of the movement's intricate mechanics. The 1120 operates at a frequency of 28,800 vibrations per hour (vph), which translates to 4 Hz. This high beat rate contributes significantly to the movement's accuracy and stability. A higher frequency allows for finer divisions of time and helps to mitigate the effects of external shocks and positional variations on the balance wheel's oscillation. For the wearer, this results in a smoother sweep of the seconds hand and improved timekeeping precision in daily use. The movement measures 24.81 mm in diameter, a dimension that influences the overall size and profile of the watches it is housed within, allowing for a balanced integration into various case designs. Another technical detail is the lift angle, specified at 47°. This parameter is primarily relevant for watchmakers and technicians during the regulation and servicing of the movement. The lift angle is a crucial input for electronic timing machines (timegraphers) to accurately measure the amplitude of the balance wheel's swing and other critical performance metrics. Correctly setting this value ensures precise diagnostics and adjustments, which are essential for maintaining the movement's optimal accuracy and performance over time. Collectively, the specifications of the Rolex 1120 describe a robust and precise automatic movement. Its self-winding nature offers practical convenience, while the high jewel count and rapid beat rate contribute to its durability and consistent timekeeping. The compact diameter allows for versatility in watch design, and the defined lift angle ensures precise calibration during maintenance, all culminating in a reliable timekeeping instrument for the wearer.

Specifications

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