ETA 2824-2

Known by several designations including Cal. 2824-2 and Omega 550, the ETA 2824-2 is an automatic movement produced by ETA. This caliber serves as a foundational component in a wide array of timepieces, providing reliable timekeeping through its self-winding mechanism. At its core, the 2824-2 is an automatic movement, meaning it harnesses the natural motion of the wearer's wrist to power itself, eliminating the need for manual winding during regular use. It incorporates 25 jewels, which are strategically placed synthetic rubies designed to reduce friction at critical pivot points, thereby enhancing the movement's longevity and stability. The balance wheel oscillates at a frequency of 28,800 vibrations per hour (vph), equivalent to 4 Hz. This high frequency contributes to the smooth sweep of the seconds hand across the dial, a visual characteristic often associated with mechanical precision. Measuring 25.6 mm in diameter and 4.5 mm in height, the 2824-2 is a compact caliber, allowing watch manufacturers flexibility in designing cases of varying sizes and profiles, including those with slimmer dimensions.

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Watches Using This Caliber(632)

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