Tudor 1156

The Tudor 1156 represents a specific manual-winding mechanical movement developed by the Swiss watchmaker Tudor. This caliber is characterized by a set of defined technical specifications that contribute to its operational profile and interaction with the wearer, embodying a traditional approach to horological mechanics. As a manual-wind movement, the 1156 requires daily interaction from its owner to maintain its power reserve. This engagement involves winding the crown, a traditional ritual that connects the wearer directly to the watch's operation, ensuring the mainspring is sufficiently tensioned to drive the gear train. Within its construction, the 1156 incorporates 17 jewels. These synthetic rubies are strategically placed at points of high friction within the movement, primarily supporting pivots in the gear train. Their purpose is to minimize wear and tear on metal components, thereby contributing to the movement's longevity and consistent performance over time by reducing frictional resistance. The movement operates at a frequency of 18,000 vibrations per hour (vph), which translates to 2.5 Hertz (Hz). This relatively traditional beat rate means the balance wheel completes 2.5 oscillations per second. For the wearer, this frequency typically results in a seconds hand that sweeps across the dial with five distinct steps per second, offering a visual indication of the movement's operation. A full wind provides the Tudor 1156 with a power reserve of 34 hours. This duration indicates how long the movement will continue to run accurately after being fully wound and subsequently removed from the wrist. A 34-hour reserve allows the watch to remain operational overnight and into the next day, though daily winding is generally recommended for consistent timekeeping. With a diameter of 43.1 mm and a height of 6.65 mm, the 1156 is a substantial caliber dimensionally. The significant diameter suggests that watches housing this movement would likely feature larger case sizes, influencing their presence on the wrist. The height, while not excessively slim, is within a range that allows for various case designs, from moderately thin to more robust profiles. The lift angle of the balance wheel is specified at 52°. This technical parameter is crucial for watchmakers when regulating the movement using a timegrapher. An accurate lift angle input ensures that the timegrapher can precisely calculate the amplitude of the balance wheel, which is a key indicator of the movement's health and accuracy. Collectively, the specifications of the Tudor 1156 describe a robust, manually wound caliber designed for consistent performance. Its traditional beat rate, practical power reserve, and substantial dimensions point to a movement that prioritizes reliability and a direct, engaging experience for the wearer, embodying a classic approach to mechanical watchmaking.

Specifications

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