ETA 1008

The ETA 1008 is a mechanical movement manufactured by ETA, designed to power timepieces with a focus on fundamental horological function. This caliber operates as a manual-wind mechanism, meaning its energy is supplied directly by the wearer through the winding crown. It represents a straightforward approach to mechanical timekeeping, emphasizing direct interaction between the user and the watch's operation. Measuring 25.6 mm in diameter, the ETA 1008 is a size suitable for integration into a variety of watch cases, from those requiring a more compact engine to those accommodating a standard-sized movement. Its manual winding type necessitates regular engagement from the wearer; the watch requires winding to maintain its operation, fostering a direct connection to the timekeeping instrument. This contrasts with automatic movements that self-wind with wrist motion. Within its construction, the ETA 1008 incorporates 15 jewels. These synthetic rubies are strategically placed at points of high friction, such as pivots for gears and balance staff bearings. Their purpose is to reduce wear on metal components, thereby enhancing the movement's durability and contributing to its long-term operational stability. The presence of 15 jewels indicates that critical friction points are adequately protected, which is a standard configuration for a robust manual-wind caliber. The movement operates at a frequency of 18,000 vibrations per hour (vph), which translates to 2.5 Hertz (Hz). This beat rate determines the speed at which the balance wheel oscillates and, consequently, the smoothness of the seconds hand's sweep across the dial. At 18,000 vph, the seconds hand advances in distinct steps, characteristic of many mechanical movements, offering a visual rhythm that distinguishes it from the continuous sweep of higher-frequency calibers or the discrete steps of quartz watches. This frequency also influences the audible ticking sound of the watch. A fully wound ETA 1008 provides a power reserve of 44 hours. This specification indicates the duration the movement can run independently after being fully wound before it requires re-winding. For the wearer, a 44-hour power reserve means the watch can be taken off the wrist for nearly two full days—for example, from Friday evening until Sunday afternoon—without stopping. If worn daily, a winding every day or two would ensure continuous operation. In summary, the ETA 1008 is a manual-wind mechanical movement from ETA, characterized by its 25.6 mm diameter, 15 jewels, 18,000 vph frequency, and a 44-hour power reserve. These specifications define a movement that offers a direct, engaging timekeeping experience, requiring regular interaction from the wearer while providing reliable operation for nearly two days on a single wind.

Specifications

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